Finding the Fourth Proportional to 243.50, 365.25 and 89.33

Step by Step Solution

1. Step 1: Write the proportion equation
   243.50 : 365.25 = 89.33 : x
2. Step 2: Convert to fraction form
   243.50/365.25 = 89.33/x
3. Step 3: Cross multiply
   243.50x = 365.25 × 89.33
4. Step 4: Simplify right side
   243.50x = 32,626.29
5. Step 5: Solve for x
   x = 32,626.29/243.50
6. Step 6: Final answer
   x = 133.99