Finding the Fourth Proportional to 165,022.72, 227,731.56 and 89,571.24

Step by Step Solution

1. Step 1: Write the proportion equation
   165,022.72 : 227,731.56 = 89,571.24 : x
2. Step 2: Convert to fraction form
   165,022.72/227,731.56 = 89,571.24/x
3. Step 3: Cross multiply
   165,022.72x = 227,731.56 × 89,571.24
4. Step 4: Simplify right side
   165,022.72x = 20,398,198,216.33
5. Step 5: Solve for x
   x = 20,398,198,216.33/165,022.72
6. Step 6: Final answer
   x = 123,608.42