Finding the Fourth Proportional to 17,471.72, 24,108.72 and 9,916.76

Step by Step Solution

1. Step 1: Write the proportion equation
   17,471.72 : 24,108.72 = 9,916.76 : x
2. Step 2: Convert to fraction form
   17,471.72/24,108.72 = 9,916.76/x
3. Step 3: Cross multiply
   17,471.72x = 24,108.72 × 9,916.76
4. Step 4: Simplify right side
   17,471.72x = 239,080,390.15
5. Step 5: Solve for x
   x = 239,080,390.15/17,471.72
6. Step 6: Final answer
   x = 13,683.85