Finding the Fourth Proportional to 165,145.38, 227,900.42 and 89,693.34

Step by Step Solution

1. Step 1: Write the proportion equation
   165,145.38 : 227,900.42 = 89,693.34 : x
2. Step 2: Convert to fraction form
   165,145.38/227,900.42 = 89,693.34/x
3. Step 3: Cross multiply
   165,145.38x = 227,900.42 × 89,693.34
4. Step 4: Simplify right side
   165,145.38x = 20,441,149,857.20
5. Step 5: Solve for x
   x = 20,441,149,857.20/165,145.38
6. Step 6: Final answer
   x = 123,776.70