Finding the Fourth Proportional to 111.46, 154.10 and 83.97

Step by Step Solution

1. Step 1: Write the proportion equation
   111.46 : 154.10 = 83.97 : x
2. Step 2: Convert to fraction form
   111.46/154.10 = 83.97/x
3. Step 3: Cross multiply
   111.46x = 154.10 × 83.97
4. Step 4: Simplify right side
   111.46x = 12,939.78
5. Step 5: Solve for x
   x = 12,939.78/111.46
6. Step 6: Final answer
   x = 116.09