Finding the Fourth Proportional to 111.82, 167.52 and 71.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111.82 : 167.52 = 71.08 : x
2. Step 2: Convert to fraction form
   111.82/167.52 = 71.08/x
3. Step 3: Cross multiply
   111.82x = 167.52 × 71.08
4. Step 4: Simplify right side
   111.82x = 11,907.32
5. Step 5: Solve for x
   x = 11,907.32/111.82
6. Step 6: Final answer
   x = 106.49