Finding the Fourth Proportional to 65,035.71, 89,792.15 and 42,108.66

Step by Step Solution

1. Step 1: Write the proportion equation
   65,035.71 : 89,792.15 = 42,108.66 : x
2. Step 2: Convert to fraction form
   65,035.71/89,792.15 = 42,108.66/x
3. Step 3: Cross multiply
   65,035.71x = 89,792.15 × 42,108.66
4. Step 4: Simplify right side
   65,035.71x = 3,781,026,904.48
5. Step 5: Solve for x
   x = 3,781,026,904.48/65,035.71
6. Step 6: Final answer
   x = 58,137.70