Finding the Fourth Proportional to 161,155.34, 222,401.29 and 89,535.36

Step by Step Solution

1. Step 1: Write the proportion equation
   161,155.34 : 222,401.29 = 89,535.36 : x
2. Step 2: Convert to fraction form
   161,155.34/222,401.29 = 89,535.36/x
3. Step 3: Cross multiply
   161,155.34x = 222,401.29 × 89,535.36
4. Step 4: Simplify right side
   161,155.34x = 19,912,780,886.92
5. Step 5: Solve for x
   x = 19,912,780,886.92/161,155.34
6. Step 6: Final answer
   x = 123,562.65