Finding the Fourth Proportional to 111.01, 166.55 and 62.21

Step by Step Solution

1. Step 1: Write the proportion equation
   111.01 : 166.55 = 62.21 : x
2. Step 2: Convert to fraction form
   111.01/166.55 = 62.21/x
3. Step 3: Cross multiply
   111.01x = 166.55 × 62.21
4. Step 4: Simplify right side
   111.01x = 10,359.93
5. Step 5: Solve for x
   x = 10,359.93/111.01
6. Step 6: Final answer
   x = 93.33