Finding the Fourth Proportional to 23,550.28, 32,499.84 and 12,939.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,550.28 : 32,499.84 = 12,939.28 : x
2. Step 2: Convert to fraction form
   23,550.28/32,499.84 = 12,939.28/x
3. Step 3: Cross multiply
   23,550.28x = 32,499.84 × 12,939.28
4. Step 4: Simplify right side
   23,550.28x = 420,524,529.72
5. Step 5: Solve for x
   x = 420,524,529.72/23,550.28
6. Step 6: Final answer
   x = 17,856.46