Finding the Fourth Proportional to 71,131.91, 98,160.86 and 39,302.15

Step by Step Solution

1. Step 1: Write the proportion equation
   71,131.91 : 98,160.86 = 39,302.15 : x
2. Step 2: Convert to fraction form
   71,131.91/98,160.86 = 39,302.15/x
3. Step 3: Cross multiply
   71,131.91x = 98,160.86 × 39,302.15
4. Step 4: Simplify right side
   71,131.91x = 3,857,932,451.30
5. Step 5: Solve for x
   x = 3,857,932,451.30/71,131.91
6. Step 6: Final answer
   x = 54,236.32