It's mainly skill for getting the fortune rings and avoiding the balls. However, when it comes to landing on the 50-Rupee space, it's either luck or using the following trick.
1) The moment you pass through the last fortune ring, memorize where the 50-Rupee space is.
2) The space will be about 3/4 of the way around the wheel in the counterclockwise direction. That is, if the wheel was a clock at the 50-Rupee space was at the 3:00 position, it would end up at about the 6:00 position.
3) Position yourself above the spot you predict, and hope you land on it. You'll probably need to fine tune that fraction; for me, it seems to be about 7/8.