Finding the Fourth Proportional to 109,078.50, 150,571.20 and 68,784.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,078.50 : 150,571.20 = 68,784.24 : x
2. Step 2: Convert to fraction form
   109,078.50/150,571.20 = 68,784.24/x
3. Step 3: Cross multiply
   109,078.50x = 150,571.20 × 68,784.24
4. Step 4: Simplify right side
   109,078.50x = 10,356,925,557.89
5. Step 5: Solve for x
   x = 10,356,925,557.89/109,078.50
6. Step 6: Final answer
   x = 94,949.28