Finding the Fourth Proportional to 111.52, 167.20 and 63.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111.52 : 167.20 = 63.42 : x
2. Step 2: Convert to fraction form
   111.52/167.20 = 63.42/x
3. Step 3: Cross multiply
   111.52x = 167.20 × 63.42
4. Step 4: Simplify right side
   111.52x = 10,603.82
5. Step 5: Solve for x
   x = 10,603.82/111.52
6. Step 6: Final answer
   x = 95.08