Finding the Fourth Proportional to 111.52, 167.16 and 42.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111.52 : 167.16 = 42.08 : x
2. Step 2: Convert to fraction form
   111.52/167.16 = 42.08/x
3. Step 3: Cross multiply
   111.52x = 167.16 × 42.08
4. Step 4: Simplify right side
   111.52x = 7,034.09
5. Step 5: Solve for x
   x = 7,034.09/111.52
6. Step 6: Final answer
   x = 63.07