Finding the Fourth Proportional to 71,357, 98,475.90 and 39,525.89

Step by Step Solution

1. Step 1: Write the proportion equation
   71,357 : 98,475.90 = 39,525.89 : x
2. Step 2: Convert to fraction form
   71,357/98,475.90 = 39,525.89/x
3. Step 3: Cross multiply
   71,357x = 98,475.90 × 39,525.89
4. Step 4: Simplify right side
   71,357x = 3,892,347,591.05
5. Step 5: Solve for x
   x = 3,892,347,591.05/71,357
6. Step 6: Final answer
   x = 54,547.52