Finding the Fourth Proportional to 23,550.39, 32,499.72 and 12,940.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,550.39 : 32,499.72 = 12,940.20 : x
2. Step 2: Convert to fraction form
   23,550.39/32,499.72 = 12,940.20/x
3. Step 3: Cross multiply
   23,550.39x = 32,499.72 × 12,940.20
4. Step 4: Simplify right side
   23,550.39x = 420,552,876.74
5. Step 5: Solve for x
   x = 420,552,876.74/23,550.39
6. Step 6: Final answer
   x = 17,857.58