Finding the Fourth Proportional to 23,550.04, 32,499.78 and 12,940

Step by Step Solution

1. Step 1: Write the proportion equation
   23,550.04 : 32,499.78 = 12,940 : x
2. Step 2: Convert to fraction form
   23,550.04/32,499.78 = 12,940/x
3. Step 3: Cross multiply
   23,550.04x = 32,499.78 × 12,940
4. Step 4: Simplify right side
   23,550.04x = 420,547,153.20
5. Step 5: Solve for x
   x = 420,547,153.20/23,550.04
6. Step 6: Final answer
   x = 17,857.60