Finding the Fourth Proportional to 16,287.50, 22,466.50 and 12,504.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,287.50 : 22,466.50 = 12,504.90 : x
2. Step 2: Convert to fraction form
   16,287.50/22,466.50 = 12,504.90/x
3. Step 3: Cross multiply
   16,287.50x = 22,466.50 × 12,504.90
4. Step 4: Simplify right side
   16,287.50x = 280,941,335.85
5. Step 5: Solve for x
   x = 280,941,335.85/16,287.50
6. Step 6: Final answer
   x = 17,248.89