Finding the Fourth Proportional to 17,872.05, 24,666.39 and 9,916.83

Step by Step Solution

1. Step 1: Write the proportion equation
   17,872.05 : 24,666.39 = 9,916.83 : x
2. Step 2: Convert to fraction form
   17,872.05/24,666.39 = 9,916.83/x
3. Step 3: Cross multiply
   17,872.05x = 24,666.39 × 9,916.83
4. Step 4: Simplify right side
   17,872.05x = 244,612,396.34
5. Step 5: Solve for x
   x = 244,612,396.34/17,872.05
6. Step 6: Final answer
   x = 13,686.87