Finding the Fourth Proportional to 111.57, 167.34 and 34.53

Step by Step Solution

1. Step 1: Write the proportion equation
   111.57 : 167.34 = 34.53 : x
2. Step 2: Convert to fraction form
   111.57/167.34 = 34.53/x
3. Step 3: Cross multiply
   111.57x = 167.34 × 34.53
4. Step 4: Simplify right side
   111.57x = 5,778.25
5. Step 5: Solve for x
   x = 5,778.25/111.57
6. Step 6: Final answer
   x = 51.79