Finding the Fourth Proportional to 16,610.72, 24,916.72 and 5,518.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,610.72 : 24,916.72 = 5,518.24 : x
2. Step 2: Convert to fraction form
   16,610.72/24,916.72 = 5,518.24/x
3. Step 3: Cross multiply
   16,610.72x = 24,916.72 × 5,518.24
4. Step 4: Simplify right side
   16,610.72x = 137,496,440.97
5. Step 5: Solve for x
   x = 137,496,440.97/16,610.72
6. Step 6: Final answer
   x = 8,277.57