Finding the Fourth Proportional to 111.61, 167.43 and 34.58

Step by Step Solution

1. Step 1: Write the proportion equation
   111.61 : 167.43 = 34.58 : x
2. Step 2: Convert to fraction form
   111.61/167.43 = 34.58/x
3. Step 3: Cross multiply
   111.61x = 167.43 × 34.58
4. Step 4: Simplify right side
   111.61x = 5,789.49
5. Step 5: Solve for x
   x = 5,789.49/111.61
6. Step 6: Final answer
   x = 51.87