Finding the Fourth Proportional to 16,509.32, 22,782.58 and 9,057.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,509.32 : 22,782.58 = 9,057.16 : x
2. Step 2: Convert to fraction form
   16,509.32/22,782.58 = 9,057.16/x
3. Step 3: Cross multiply
   16,509.32x = 22,782.58 × 9,057.16
4. Step 4: Simplify right side
   16,509.32x = 206,345,472.27
5. Step 5: Solve for x
   x = 206,345,472.27/16,509.32
6. Step 6: Final answer
   x = 12,498.73