Finding the Fourth Proportional to 111.18, 166.82 and 46.22

Step by Step Solution

1. Step 1: Write the proportion equation
   111.18 : 166.82 = 46.22 : x
2. Step 2: Convert to fraction form
   111.18/166.82 = 46.22/x
3. Step 3: Cross multiply
   111.18x = 166.82 × 46.22
4. Step 4: Simplify right side
   111.18x = 7,710.42
5. Step 5: Solve for x
   x = 7,710.42/111.18
6. Step 6: Final answer
   x = 69.35