Finding the Fourth Proportional to 16,359.72, 22,577.58 and 9,286.61

Step by Step Solution

1. Step 1: Write the proportion equation
   16,359.72 : 22,577.58 = 9,286.61 : x
2. Step 2: Convert to fraction form
   16,359.72/22,577.58 = 9,286.61/x
3. Step 3: Cross multiply
   16,359.72x = 22,577.58 × 9,286.61
4. Step 4: Simplify right side
   16,359.72x = 209,669,067.32
5. Step 5: Solve for x
   x = 209,669,067.32/16,359.72
6. Step 6: Final answer
   x = 12,816.18