Finding the Fourth Proportional to 80.73, 111.41 and 43.89

Step by Step Solution

1. Step 1: Write the proportion equation
   80.73 : 111.41 = 43.89 : x
2. Step 2: Convert to fraction form
   80.73/111.41 = 43.89/x
3. Step 3: Cross multiply
   80.73x = 111.41 × 43.89
4. Step 4: Simplify right side
   80.73x = 4,889.15
5. Step 5: Solve for x
   x = 4,889.15/80.73
6. Step 6: Final answer
   x = 60.56