Finding the Fourth Proportional to 165,141.38, 227,894.90 and 89,689.34

Step by Step Solution

1. Step 1: Write the proportion equation
   165,141.38 : 227,894.90 = 89,689.34 : x
2. Step 2: Convert to fraction form
   165,141.38/227,894.90 = 89,689.34/x
3. Step 3: Cross multiply
   165,141.38x = 227,894.90 × 89,689.34
4. Step 4: Simplify right side
   165,141.38x = 20,439,743,170.37
5. Step 5: Solve for x
   x = 20,439,743,170.37/165,141.38
6. Step 6: Final answer
   x = 123,771.18