Finding the Fourth Proportional to 22,498.12, 31,047.12 and 12,427

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498.12 : 31,047.12 = 12,427 : x
2. Step 2: Convert to fraction form
   22,498.12/31,047.12 = 12,427/x
3. Step 3: Cross multiply
   22,498.12x = 31,047.12 × 12,427
4. Step 4: Simplify right side
   22,498.12x = 385,822,560.24
5. Step 5: Solve for x
   x = 385,822,560.24/22,498.12
6. Step 6: Final answer
   x = 17,149.10