Finding the Fourth Proportional to 111.39, 167.04 and 50.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111.39 : 167.04 = 50.55 : x
2. Step 2: Convert to fraction form
   111.39/167.04 = 50.55/x
3. Step 3: Cross multiply
   111.39x = 167.04 × 50.55
4. Step 4: Simplify right side
   111.39x = 8,443.87
5. Step 5: Solve for x
   x = 8,443.87/111.39
6. Step 6: Final answer
   x = 75.80