Finding the Fourth Proportional to 71,362.52, 98,478.96 and 39,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,362.52 : 98,478.96 = 39,530.72 : x
2. Step 2: Convert to fraction form
   71,362.52/98,478.96 = 39,530.72/x
3. Step 3: Cross multiply
   71,362.52x = 98,478.96 × 39,530.72
4. Step 4: Simplify right side
   71,362.52x = 3,892,944,193.65
5. Step 5: Solve for x
   x = 3,892,944,193.65/71,362.52
6. Step 6: Final answer
   x = 54,551.66