Finding the Fourth Proportional to 71,385.32, 98,510.28 and 39,553.94

Step by Step Solution

1. Step 1: Write the proportion equation
   71,385.32 : 98,510.28 = 39,553.94 : x
2. Step 2: Convert to fraction form
   71,385.32/98,510.28 = 39,553.94/x
3. Step 3: Cross multiply
   71,385.32x = 98,510.28 × 39,553.94
4. Step 4: Simplify right side
   71,385.32x = 3,896,469,802.45
5. Step 5: Solve for x
   x = 3,896,469,802.45/71,385.32
6. Step 6: Final answer
   x = 54,583.63