Finding the Fourth Proportional to 71,513.50, 98,688.30 and 39,682.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,513.50 : 98,688.30 = 39,682.32 : x
2. Step 2: Convert to fraction form
   71,513.50/98,688.30 = 39,682.32/x
3. Step 3: Cross multiply
   71,513.50x = 98,688.30 × 39,682.32
4. Step 4: Simplify right side
   71,513.50x = 3,916,180,700.86
5. Step 5: Solve for x
   x = 3,916,180,700.86/71,513.50
6. Step 6: Final answer
   x = 54,761.42