Finding the Fourth Proportional to 71,513.41, 98,688.56 and 39,682.29

Step by Step Solution

1. Step 1: Write the proportion equation
   71,513.41 : 98,688.56 = 39,682.29 : x
2. Step 2: Convert to fraction form
   71,513.41/98,688.56 = 39,682.29/x
3. Step 3: Cross multiply
   71,513.41x = 98,688.56 × 39,682.29
4. Step 4: Simplify right side
   71,513.41x = 3,916,188,057.60
5. Step 5: Solve for x
   x = 3,916,188,057.60/71,513.41
6. Step 6: Final answer
   x = 54,761.59