Finding the Fourth Proportional to 16,149.32, 22,285.86 and 8,979.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,149.32 : 22,285.86 = 8,979.18 : x
2. Step 2: Convert to fraction form
   16,149.32/22,285.86 = 8,979.18/x
3. Step 3: Cross multiply
   16,149.32x = 22,285.86 × 8,979.18
4. Step 4: Simplify right side
   16,149.32x = 200,108,719.08
5. Step 5: Solve for x
   x = 200,108,719.08/16,149.32
6. Step 6: Final answer
   x = 12,391.15