Finding the Fourth Proportional to 161,061.14, 222,264.81 and 89,441.21

Step by Step Solution

1. Step 1: Write the proportion equation
   161,061.14 : 222,264.81 = 89,441.21 : x
2. Step 2: Convert to fraction form
   161,061.14/222,264.81 = 89,441.21/x
3. Step 3: Cross multiply
   161,061.14x = 222,264.81 × 89,441.21
4. Step 4: Simplify right side
   161,061.14x = 19,879,634,102.48
5. Step 5: Solve for x
   x = 19,879,634,102.48/161,061.14
6. Step 6: Final answer
   x = 123,429.11