Finding the Fourth Proportional to 111.42, 166.14 and 95.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.42 : 166.14 = 95.94 : x
2. Step 2: Convert to fraction form
   111.42/166.14 = 95.94/x
3. Step 3: Cross multiply
   111.42x = 166.14 × 95.94
4. Step 4: Simplify right side
   111.42x = 15,939.47
5. Step 5: Solve for x
   x = 15,939.47/111.42
6. Step 6: Final answer
   x = 143.06