Finding the Fourth Proportional to 67.28, 101.03 and 53.82

Step by Step Solution

1. Step 1: Write the proportion equation
   67.28 : 101.03 = 53.82 : x
2. Step 2: Convert to fraction form
   67.28/101.03 = 53.82/x
3. Step 3: Cross multiply
   67.28x = 101.03 × 53.82
4. Step 4: Simplify right side
   67.28x = 5,437.17
5. Step 5: Solve for x
   x = 5,437.17/67.28
6. Step 6: Final answer
   x = 80.82