Finding the Fourth Proportional to 111.15, 167.54 and 106.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111.15 : 167.54 = 106.52 : x
2. Step 2: Convert to fraction form
   111.15/167.54 = 106.52/x
3. Step 3: Cross multiply
   111.15x = 167.54 × 106.52
4. Step 4: Simplify right side
   111.15x = 17,844.99
5. Step 5: Solve for x
   x = 17,844.99/111.15
6. Step 6: Final answer
   x = 160.55