Finding the Fourth Proportional to 71,417.43, 98,554.50 and 39,586.05

Step by Step Solution

1. Step 1: Write the proportion equation
   71,417.43 : 98,554.50 = 39,586.05 : x
2. Step 2: Convert to fraction form
   71,417.43/98,554.50 = 39,586.05/x
3. Step 3: Cross multiply
   71,417.43x = 98,554.50 × 39,586.05
4. Step 4: Simplify right side
   71,417.43x = 3,901,383,364.73
5. Step 5: Solve for x
   x = 3,901,383,364.73/71,417.43
6. Step 6: Final answer
   x = 54,627.89