Finding the Fourth Proportional to 89,672.12, 123,762.32 and 68,411.24

Step by Step Solution

1. Step 1: Write the proportion equation
   89,672.12 : 123,762.32 = 68,411.24 : x
2. Step 2: Convert to fraction form
   89,672.12/123,762.32 = 68,411.24/x
3. Step 3: Cross multiply
   89,672.12x = 123,762.32 × 68,411.24
4. Step 4: Simplify right side
   89,672.12x = 8,466,733,776.48
5. Step 5: Solve for x
   x = 8,466,733,776.48/89,672.12
6. Step 6: Final answer
   x = 94,418.80