Finding the Fourth Proportional to 22,158.56, 33,219.20 and 10,306.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,158.56 : 33,219.20 = 10,306.31 : x
2. Step 2: Convert to fraction form
   22,158.56/33,219.20 = 10,306.31/x
3. Step 3: Cross multiply
   22,158.56x = 33,219.20 × 10,306.31
4. Step 4: Simplify right side
   22,158.56x = 342,367,498.62
5. Step 5: Solve for x
   x = 342,367,498.62/22,158.56
6. Step 6: Final answer
   x = 15,450.80