Finding the Fourth Proportional to 161,231, 222,502.56 and 89,614.04

Step by Step Solution

1. Step 1: Write the proportion equation
   161,231 : 222,502.56 = 89,614.04 : x
2. Step 2: Convert to fraction form
   161,231/222,502.56 = 89,614.04/x
3. Step 3: Cross multiply
   161,231x = 222,502.56 × 89,614.04
4. Step 4: Simplify right side
   161,231x = 19,939,353,311.94
5. Step 5: Solve for x
   x = 19,939,353,311.94/161,231
6. Step 6: Final answer
   x = 123,669.48