Finding the Fourth Proportional to 111.55, 167.42 and 50.73

Step by Step Solution

1. Step 1: Write the proportion equation
   111.55 : 167.42 = 50.73 : x
2. Step 2: Convert to fraction form
   111.55/167.42 = 50.73/x
3. Step 3: Cross multiply
   111.55x = 167.42 × 50.73
4. Step 4: Simplify right side
   111.55x = 8,493.22
5. Step 5: Solve for x
   x = 8,493.22/111.55
6. Step 6: Final answer
   x = 76.14