Finding the Fourth Proportional to 23,399.91, 32,292.09 and 12,789.54

Step by Step Solution

1. Step 1: Write the proportion equation
   23,399.91 : 32,292.09 = 12,789.54 : x
2. Step 2: Convert to fraction form
   23,399.91/32,292.09 = 12,789.54/x
3. Step 3: Cross multiply
   23,399.91x = 32,292.09 × 12,789.54
4. Step 4: Simplify right side
   23,399.91x = 413,000,976.74
5. Step 5: Solve for x
   x = 413,000,976.74/23,399.91
6. Step 6: Final answer
   x = 17,649.68