Finding the Fourth Proportional to 80.82, 121.15 and 32.69

Step by Step Solution

1. Step 1: Write the proportion equation
   80.82 : 121.15 = 32.69 : x
2. Step 2: Convert to fraction form
   80.82/121.15 = 32.69/x
3. Step 3: Cross multiply
   80.82x = 121.15 × 32.69
4. Step 4: Simplify right side
   80.82x = 3,960.39
5. Step 5: Solve for x
   x = 3,960.39/80.82
6. Step 6: Final answer
   x = 49.00