Finding the Fourth Proportional to 16,149.36, 22,287.06 and 8,979.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,149.36 : 22,287.06 = 8,979.42 : x
2. Step 2: Convert to fraction form
   16,149.36/22,287.06 = 8,979.42/x
3. Step 3: Cross multiply
   16,149.36x = 22,287.06 × 8,979.42
4. Step 4: Simplify right side
   16,149.36x = 200,124,872.31
5. Step 5: Solve for x
   x = 200,124,872.31/16,149.36
6. Step 6: Final answer
   x = 12,392.12