Finding the Fourth Proportional to 23,550.06, 32,499.18 and 12,939.90

Step by Step Solution

1. Step 1: Write the proportion equation
   23,550.06 : 32,499.18 = 12,939.90 : x
2. Step 2: Convert to fraction form
   23,550.06/32,499.18 = 12,939.90/x
3. Step 3: Cross multiply
   23,550.06x = 32,499.18 × 12,939.90
4. Step 4: Simplify right side
   23,550.06x = 420,536,139.28
5. Step 5: Solve for x
   x = 420,536,139.28/23,550.06
6. Step 6: Final answer
   x = 17,857.12