Finding the Fourth Proportional to 22,555.62, 31,119.17 and 13,116.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,555.62 : 31,119.17 = 13,116.42 : x
2. Step 2: Convert to fraction form
   22,555.62/31,119.17 = 13,116.42/x
3. Step 3: Cross multiply
   22,555.62x = 31,119.17 × 13,116.42
4. Step 4: Simplify right side
   22,555.62x = 408,172,103.77
5. Step 5: Solve for x
   x = 408,172,103.77/22,555.62
6. Step 6: Final answer
   x = 18,096.25