Finding the Fourth Proportional to 111.32, 167.01 and 106.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111.32 : 167.01 = 106.79 : x
2. Step 2: Convert to fraction form
   111.32/167.01 = 106.79/x
3. Step 3: Cross multiply
   111.32x = 167.01 × 106.79
4. Step 4: Simplify right side
   111.32x = 17,835.00
5. Step 5: Solve for x
   x = 17,835.00/111.32
6. Step 6: Final answer
   x = 160.21