The level of backing was evident right from kick-off and was rewarded with Jermain Defoe's early goal. Ledley admits that a few nerves set in when a second goal didn't come and says the fans helped the team through the game to secure the three points.
We realised the importance of the game and, after the disappointment against Grimsby, we wanted to put it right," reflected the skipper. "We didn't play great but it was a team performance and you could see we really wanted to get the three points - which is what we did.
"We know we lost a game we shouldn't have done in the cup but it didn't mean we were playing badly. We've done decently in the league, although I think a little bit of nerves came into the game on Monday.
"The fans got behind us very early and helped us through the game."
With the victory over Fulham it is up to fourth place with only one defeat in seven Premiership games and a big one coming up against second placed Charlton on Saturday.
As I said, our form has been decent - even though we slipped up last week - and we have to concentrate on league position at the moment
"We've moved up to fourth and I thought it was a chance we had to take as too many times we have let opportunities like that go past us.
"It is good to have moved up and hopefully we can keep it going."
Meanwhile, Ledley reported the groin problem that led to him missing our opening three games of the season is easing nicely.
"It still needs managing a little bit. After the Aston Villa game the Grimsby one came around quite quickly and it was a little bit niggly. After that there was enough time between games to settle it down again and it felt fine against Fulham and fine now."
Ledley King insisted it was vital to return to winning ways against Fulham and pointed to the support of the fans as a key factor in the victory.