Finding the Fourth Proportional to 71,039.71, 98,034.33 and 39,208.61

Step by Step Solution

1. Step 1: Write the proportion equation
   71,039.71 : 98,034.33 = 39,208.61 : x
2. Step 2: Convert to fraction form
   71,039.71/98,034.33 = 39,208.61/x
3. Step 3: Cross multiply
   71,039.71x = 98,034.33 × 39,208.61
4. Step 4: Simplify right side
   71,039.71x = 3,843,789,321.43
5. Step 5: Solve for x
   x = 3,843,789,321.43/71,039.71
6. Step 6: Final answer
   x = 54,107.62