Finding the Fourth Proportional to 71,061.28, 98,063.98 and 39,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,061.28 : 98,063.98 = 39,229.50 : x
2. Step 2: Convert to fraction form
   71,061.28/98,063.98 = 39,229.50/x
3. Step 3: Cross multiply
   71,061.28x = 98,063.98 × 39,229.50
4. Step 4: Simplify right side
   71,061.28x = 3,847,000,903.41
5. Step 5: Solve for x
   x = 3,847,000,903.41/71,061.28
6. Step 6: Final answer
   x = 54,136.39