Finding the Fourth Proportional to 165,108.50, 227,852.57 and 89,657

Step by Step Solution

1. Step 1: Write the proportion equation
   165,108.50 : 227,852.57 = 89,657 : x
2. Step 2: Convert to fraction form
   165,108.50/227,852.57 = 89,657/x
3. Step 3: Cross multiply
   165,108.50x = 227,852.57 × 89,657
4. Step 4: Simplify right side
   165,108.50x = 20,428,577,868.49
5. Step 5: Solve for x
   x = 20,428,577,868.49/165,108.50
6. Step 6: Final answer
   x = 123,728.20