Finding the Fourth Proportional to 111.22, 166.56 and 101.05

Step by Step Solution

1. Step 1: Write the proportion equation
   111.22 : 166.56 = 101.05 : x
2. Step 2: Convert to fraction form
   111.22/166.56 = 101.05/x
3. Step 3: Cross multiply
   111.22x = 166.56 × 101.05
4. Step 4: Simplify right side
   111.22x = 16,830.89
5. Step 5: Solve for x
   x = 16,830.89/111.22
6. Step 6: Final answer
   x = 151.33