Finding the Fourth Proportional to 114.72, 159.35 and 111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   114.72 : 159.35 = 111.48 : x
2. Step 2: Convert to fraction form
   114.72/159.35 = 111.48/x
3. Step 3: Cross multiply
   114.72x = 159.35 × 111.48
4. Step 4: Simplify right side
   114.72x = 17,765.15
5. Step 5: Solve for x
   x = 17,765.15/114.72
6. Step 6: Final answer
   x = 154.85