Finding the Fourth Proportional to 22,077.72, 33,107.34 and 8,920.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,077.72 : 33,107.34 = 8,920.86 : x
2. Step 2: Convert to fraction form
   22,077.72/33,107.34 = 8,920.86/x
3. Step 3: Cross multiply
   22,077.72x = 33,107.34 × 8,920.86
4. Step 4: Simplify right side
   22,077.72x = 295,345,945.11
5. Step 5: Solve for x
   x = 295,345,945.11/22,077.72
6. Step 6: Final answer
   x = 13,377.56