Finding the Fourth Proportional to 89,228.52, 122,826.24 and 77,123.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,228.52 : 122,826.24 = 77,123.40 : x
2. Step 2: Convert to fraction form
   89,228.52/122,826.24 = 77,123.40/x
3. Step 3: Cross multiply
   89,228.52x = 122,826.24 × 77,123.40
4. Step 4: Simplify right side
   89,228.52x = 9,472,777,238.02
5. Step 5: Solve for x
   x = 9,472,777,238.02/89,228.52
6. Step 6: Final answer
   x = 106,163.11