X would represent amount of money made by Asuka.
Amount made by Tracy; x + 5.80
Amount by Kyle; 0.5(x + 5.80)= 0.5x + 2.90.
Amount by Bev; 3(0.5x + 2.90) = 1.5x + 8.70
X + x + 5.80 + 0.5x + 2.90 + 1.5x + 8.70= 246.20
4x + 17.40= 246.20
4x + 17.40 - 17.40 = 246.20 - 17.40
4x= 228.80
4x/4 = 228.80/4
X = 57.20
Tracy- 57.20 + 5.80 = 63
Kyle- 31.50
Bev- 94.50
Asuka- 57.20
Hope this helps.