Finding the Fourth Proportional to 89,477.36, 123,433.18 and 68,219.72

Step by Step Solution

1. Step 1: Write the proportion equation
   89,477.36 : 123,433.18 = 68,219.72 : x
2. Step 2: Convert to fraction form
   89,477.36/123,433.18 = 68,219.72/x
3. Step 3: Cross multiply
   89,477.36x = 123,433.18 × 68,219.72
4. Step 4: Simplify right side
   89,477.36x = 8,420,576,978.31
5. Step 5: Solve for x
   x = 8,420,576,978.31/89,477.36
6. Step 6: Final answer
   x = 94,108.46