Finding the Fourth Proportional to 22,155.42, 33,239.61 and 8,305.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,155.42 : 33,239.61 = 8,305.50 : x
2. Step 2: Convert to fraction form
   22,155.42/33,239.61 = 8,305.50/x
3. Step 3: Cross multiply
   22,155.42x = 33,239.61 × 8,305.50
4. Step 4: Simplify right side
   22,155.42x = 276,071,580.86
5. Step 5: Solve for x
   x = 276,071,580.86/22,155.42
6. Step 6: Final answer
   x = 12,460.68