Finding the Fourth Proportional to 111.53, 167.31 and 34.49

Step by Step Solution

1. Step 1: Write the proportion equation
   111.53 : 167.31 = 34.49 : x
2. Step 2: Convert to fraction form
   111.53/167.31 = 34.49/x
3. Step 3: Cross multiply
   111.53x = 167.31 × 34.49
4. Step 4: Simplify right side
   111.53x = 5,770.35
5. Step 5: Solve for x
   x = 5,770.35/111.53
6. Step 6: Final answer
   x = 51.74