Finding the Fourth Proportional to 12,442.50, 17,171.46 and 8,251.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,442.50 : 17,171.46 = 8,251.56 : x
2. Step 2: Convert to fraction form
   12,442.50/17,171.46 = 8,251.56/x
3. Step 3: Cross multiply
   12,442.50x = 17,171.46 × 8,251.56
4. Step 4: Simplify right side
   12,442.50x = 141,691,332.48
5. Step 5: Solve for x
   x = 141,691,332.48/12,442.50
6. Step 6: Final answer
   x = 11,387.69