Finding the Fourth Proportional to 23,278.79, 32,124.90 and 12,668.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,278.79 : 32,124.90 = 12,668.50 : x
2. Step 2: Convert to fraction form
   23,278.79/32,124.90 = 12,668.50/x
3. Step 3: Cross multiply
   23,278.79x = 32,124.90 × 12,668.50
4. Step 4: Simplify right side
   23,278.79x = 406,974,383.31
5. Step 5: Solve for x
   x = 406,974,383.31/23,278.79
6. Step 6: Final answer
   x = 17,482.62