Finding the Fourth Proportional to 111.77, 167.58 and 50.82

Step by Step Solution

1. Step 1: Write the proportion equation
   111.77 : 167.58 = 50.82 : x
2. Step 2: Convert to fraction form
   111.77/167.58 = 50.82/x
3. Step 3: Cross multiply
   111.77x = 167.58 × 50.82
4. Step 4: Simplify right side
   111.77x = 8,516.42
5. Step 5: Solve for x
   x = 8,516.42/111.77
6. Step 6: Final answer
   x = 76.20