Finding the Fourth Proportional to 22,522.50, 31,080.84 and 12,451.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,522.50 : 31,080.84 = 12,451.20 : x
2. Step 2: Convert to fraction form
   22,522.50/31,080.84 = 12,451.20/x
3. Step 3: Cross multiply
   22,522.50x = 31,080.84 × 12,451.20
4. Step 4: Simplify right side
   22,522.50x = 386,993,755.01
5. Step 5: Solve for x
   x = 386,993,755.01/22,522.50
6. Step 6: Final answer
   x = 17,182.54