Finding the Fourth Proportional to 89,651.36, 123,491.04 and 68,393.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,651.36 : 123,491.04 = 68,393.72 : x
2. Step 2: Convert to fraction form
   89,651.36/123,491.04 = 68,393.72/x
3. Step 3: Cross multiply
   89,651.36x = 123,491.04 × 68,393.72
4. Step 4: Simplify right side
   89,651.36x = 8,446,011,612.27
5. Step 5: Solve for x
   x = 8,446,011,612.27/89,651.36
6. Step 6: Final answer
   x = 94,209.52