Finding the Fourth Proportional to 67.38, 101.12 and 53.94

Step by Step Solution

1. Step 1: Write the proportion equation
   67.38 : 101.12 = 53.94 : x
2. Step 2: Convert to fraction form
   67.38/101.12 = 53.94/x
3. Step 3: Cross multiply
   67.38x = 101.12 × 53.94
4. Step 4: Simplify right side
   67.38x = 5,454.41
5. Step 5: Solve for x
   x = 5,454.41/67.38
6. Step 6: Final answer
   x = 80.95