Finding the Fourth Proportional to 9,200.39, 12,691.14 and 6,508.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,200.39 : 12,691.14 = 6,508.59 : x
2. Step 2: Convert to fraction form
   9,200.39/12,691.14 = 6,508.59/x
3. Step 3: Cross multiply
   9,200.39x = 12,691.14 × 6,508.59
4. Step 4: Simplify right side
   9,200.39x = 82,601,426.89
5. Step 5: Solve for x
   x = 82,601,426.89/9,200.39
6. Step 6: Final answer
   x = 8,978.04