Finding the Fourth Proportional to 109,128.24, 150,583.50 and 68,826.78

Step by Step Solution

1. Step 1: Write the proportion equation
   109,128.24 : 150,583.50 = 68,826.78 : x
2. Step 2: Convert to fraction form
   109,128.24/150,583.50 = 68,826.78/x
3. Step 3: Cross multiply
   109,128.24x = 150,583.50 × 68,826.78
4. Step 4: Simplify right side
   109,128.24x = 10,364,177,426.13
5. Step 5: Solve for x
   x = 10,364,177,426.13/109,128.24
6. Step 6: Final answer
   x = 94,972.46