Finding the Fourth Proportional to 22,105.30, 33,158.30 and 12,306.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,105.30 : 33,158.30 = 12,306.86 : x
2. Step 2: Convert to fraction form
   22,105.30/33,158.30 = 12,306.86/x
3. Step 3: Cross multiply
   22,105.30x = 33,158.30 × 12,306.86
4. Step 4: Simplify right side
   22,105.30x = 408,074,555.94
5. Step 5: Solve for x
   x = 408,074,555.94/22,105.30
6. Step 6: Final answer
   x = 18,460.48