Finding the Fourth Proportional to 22,498, 31,049.16 and 12,563.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,498 : 31,049.16 = 12,563.92 : x
2. Step 2: Convert to fraction form
   22,498/31,049.16 = 12,563.92/x
3. Step 3: Cross multiply
   22,498x = 31,049.16 × 12,563.92
4. Step 4: Simplify right side
   22,498x = 390,099,162.31
5. Step 5: Solve for x
   x = 390,099,162.31/22,498
6. Step 6: Final answer
   x = 17,339.28