Finding the Fourth Proportional to 71,330.31, 98,434.61 and 39,498.52

Step by Step Solution

1. Step 1: Write the proportion equation
   71,330.31 : 98,434.61 = 39,498.52 : x
2. Step 2: Convert to fraction form
   71,330.31/98,434.61 = 39,498.52/x
3. Step 3: Cross multiply
   71,330.31x = 98,434.61 × 39,498.52
4. Step 4: Simplify right side
   71,330.31x = 3,888,021,411.78
5. Step 5: Solve for x
   x = 3,888,021,411.78/71,330.31
6. Step 6: Final answer
   x = 54,507.28