Finding the Fourth Proportional to 111.81, 167.73 and 34.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111.81 : 167.73 = 34.79 : x
2. Step 2: Convert to fraction form
   111.81/167.73 = 34.79/x
3. Step 3: Cross multiply
   111.81x = 167.73 × 34.79
4. Step 4: Simplify right side
   111.81x = 5,834.49
5. Step 5: Solve for x
   x = 5,834.49/111.81
6. Step 6: Final answer
   x = 52.18