Finding the Fourth Proportional to 71,142.50, 98,175.29 and 39,310.71

Step by Step Solution

1. Step 1: Write the proportion equation
   71,142.50 : 98,175.29 = 39,310.71 : x
2. Step 2: Convert to fraction form
   71,142.50/98,175.29 = 39,310.71/x
3. Step 3: Cross multiply
   71,142.50x = 98,175.29 × 39,310.71
4. Step 4: Simplify right side
   71,142.50x = 3,859,340,157.80
5. Step 5: Solve for x
   x = 3,859,340,157.80/71,142.50
6. Step 6: Final answer
   x = 54,248.03