Finding the Fourth Proportional to 71,314.90, 98,414.72 and 39,488.58

Step by Step Solution

1. Step 1: Write the proportion equation
   71,314.90 : 98,414.72 = 39,488.58 : x
2. Step 2: Convert to fraction form
   71,314.90/98,414.72 = 39,488.58/x
3. Step 3: Cross multiply
   71,314.90x = 98,414.72 × 39,488.58
4. Step 4: Simplify right side
   71,314.90x = 3,886,257,543.90
5. Step 5: Solve for x
   x = 3,886,257,543.90/71,314.90
6. Step 6: Final answer
   x = 54,494.33