Finding the Fourth Proportional to 89,407.42, 123,281.24 and 65,165.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,407.42 : 123,281.24 = 65,165.56 : x
2. Step 2: Convert to fraction form
   89,407.42/123,281.24 = 65,165.56/x
3. Step 3: Cross multiply
   89,407.42x = 123,281.24 × 65,165.56
4. Step 4: Simplify right side
   89,407.42x = 8,033,691,042.09
5. Step 5: Solve for x
   x = 8,033,691,042.09/89,407.42
6. Step 6: Final answer
   x = 89,854.86