Finding the Fourth Proportional to 111.50, 167.23 and 50.61

Step by Step Solution

1. Step 1: Write the proportion equation
   111.50 : 167.23 = 50.61 : x
2. Step 2: Convert to fraction form
   111.50/167.23 = 50.61/x
3. Step 3: Cross multiply
   111.50x = 167.23 × 50.61
4. Step 4: Simplify right side
   111.50x = 8,463.51
5. Step 5: Solve for x
   x = 8,463.51/111.50
6. Step 6: Final answer
   x = 75.91