Finding the Fourth Proportional to 71,329.94, 98,434.10 and 39,498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   71,329.94 : 98,434.10 = 39,498.15 : x
2. Step 2: Convert to fraction form
   71,329.94/98,434.10 = 39,498.15/x
3. Step 3: Cross multiply
   71,329.94x = 98,434.10 × 39,498.15
4. Step 4: Simplify right side
   71,329.94x = 3,887,964,846.92
5. Step 5: Solve for x
   x = 3,887,964,846.92/71,329.94
6. Step 6: Final answer
   x = 54,506.77