Finding the Fourth Proportional to 16,601.16, 22,909.86 and 9,149.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,601.16 : 22,909.86 = 9,149.16 : x
2. Step 2: Convert to fraction form
   16,601.16/22,909.86 = 9,149.16/x
3. Step 3: Cross multiply
   16,601.16x = 22,909.86 × 9,149.16
4. Step 4: Simplify right side
   16,601.16x = 209,605,974.72
5. Step 5: Solve for x
   x = 209,605,974.72/16,601.16
6. Step 6: Final answer
   x = 12,625.98