Finding the Fourth Proportional to 71,383.20, 98,508.72 and 39,554.16

Step by Step Solution

1. Step 1: Write the proportion equation
   71,383.20 : 98,508.72 = 39,554.16 : x
2. Step 2: Convert to fraction form
   71,383.20/98,508.72 = 39,554.16/x
3. Step 3: Cross multiply
   71,383.20x = 98,508.72 × 39,554.16
4. Step 4: Simplify right side
   71,383.20x = 3,896,429,672.28
5. Step 5: Solve for x
   x = 3,896,429,672.28/71,383.20
6. Step 6: Final answer
   x = 54,584.69