Complex sentence: The organisers did not remove the favourite Georget, but decided to set him back from the fourth place to the 48th and last place in the stage, which effectively costed him 44 points in the general classification.
Split into simpler sentences: The organisers did not remove the favourite Georget, but decided to place him last in the stage. Georget had finished fourth in that stage but was set back to the 48th and last place in that stage; this effectively costed him 44 points in the general classification.