Finding the Fourth Proportional to 111.71, 167.54 and 50.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111.71 : 167.54 = 50.82 : x
2. Step 2: Convert to fraction form
   111.71/167.54 = 50.82/x
3. Step 3: Cross multiply
   111.71x = 167.54 × 50.82
4. Step 4: Simplify right side
   111.71x = 8,514.51
5. Step 5: Solve for x
   x = 8,514.51/111.71
6. Step 6: Final answer
   x = 76.22