Finding the Fourth Proportional to 17,470.72, 24,107.34 and 9,915.76

Step by Step Solution

1. Step 1: Write the proportion equation
   17,470.72 : 24,107.34 = 9,915.76 : x
2. Step 2: Convert to fraction form
   17,470.72/24,107.34 = 9,915.76/x
3. Step 3: Cross multiply
   17,470.72x = 24,107.34 × 9,915.76
4. Step 4: Simplify right side
   17,470.72x = 239,042,597.68
5. Step 5: Solve for x
   x = 239,042,597.68/17,470.72
6. Step 6: Final answer
   x = 13,682.47