Finding the Fourth Proportional to 67.57, 101.25 and 54.82

Step by Step Solution

1. Step 1: Write the proportion equation
   67.57 : 101.25 = 54.82 : x
2. Step 2: Convert to fraction form
   67.57/101.25 = 54.82/x
3. Step 3: Cross multiply
   67.57x = 101.25 × 54.82
4. Step 4: Simplify right side
   67.57x = 5,550.53
5. Step 5: Solve for x
   x = 5,550.53/67.57
6. Step 6: Final answer
   x = 82.14