Finding the Fourth Proportional to 22,494.80, 31,042.71 and 12,423.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,494.80 : 31,042.71 = 12,423.19 : x
2. Step 2: Convert to fraction form
   22,494.80/31,042.71 = 12,423.19/x
3. Step 3: Cross multiply
   22,494.80x = 31,042.71 × 12,423.19
4. Step 4: Simplify right side
   22,494.80x = 385,649,406.84
5. Step 5: Solve for x
   x = 385,649,406.84/22,494.80
6. Step 6: Final answer
   x = 17,143.94