Finding the Fourth Proportional to 111.01, 166.37 and 56.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.01 : 166.37 = 56.94 : x
2. Step 2: Convert to fraction form
   111.01/166.37 = 56.94/x
3. Step 3: Cross multiply
   111.01x = 166.37 × 56.94
4. Step 4: Simplify right side
   111.01x = 9,472.82
5. Step 5: Solve for x
   x = 9,472.82/111.01
6. Step 6: Final answer
   x = 85.33