Finding the Fourth Proportional to 22,494.30, 31,042.02 and 12,422.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,494.30 : 31,042.02 = 12,422.69 : x
2. Step 2: Convert to fraction form
   22,494.30/31,042.02 = 12,422.69/x
3. Step 3: Cross multiply
   22,494.30x = 31,042.02 × 12,422.69
4. Step 4: Simplify right side
   22,494.30x = 385,625,391.43
5. Step 5: Solve for x
   x = 385,625,391.43/22,494.30
6. Step 6: Final answer
   x = 17,143.25