Finding the Fourth Proportional to 111.01, 166.52 and 74.68

Step by Step Solution

1. Step 1: Write the proportion equation
   111.01 : 166.52 = 74.68 : x
2. Step 2: Convert to fraction form
   111.01/166.52 = 74.68/x
3. Step 3: Cross multiply
   111.01x = 166.52 × 74.68
4. Step 4: Simplify right side
   111.01x = 12,434.51
5. Step 5: Solve for x
   x = 12,434.51/111.01
6. Step 6: Final answer
   x = 112.02