Finding the Fourth Proportional to 22,348.81, 30,839.82 and 13,391.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,348.81 : 30,839.82 = 13,391.83 : x
2. Step 2: Convert to fraction form
   22,348.81/30,839.82 = 13,391.83/x
3. Step 3: Cross multiply
   22,348.81x = 30,839.82 × 13,391.83
4. Step 4: Simplify right side
   22,348.81x = 413,001,472.47
5. Step 5: Solve for x
   x = 413,001,472.47/22,348.81
6. Step 6: Final answer
   x = 18,479.80