Finding the Fourth Proportional to 17,872.63, 24,664.25 and 9,916.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,872.63 : 24,664.25 = 9,916.09 : x
2. Step 2: Convert to fraction form
   17,872.63/24,664.25 = 9,916.09/x
3. Step 3: Cross multiply
   17,872.63x = 24,664.25 × 9,916.09
4. Step 4: Simplify right side
   17,872.63x = 244,572,922.78
5. Step 5: Solve for x
   x = 244,572,922.78/17,872.63
6. Step 6: Final answer
   x = 13,684.22