Finding the Fourth Proportional to 67.96, 101.67 and 42.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67.96 : 101.67 = 42.28 : x
2. Step 2: Convert to fraction form
   67.96/101.67 = 42.28/x
3. Step 3: Cross multiply
   67.96x = 101.67 × 42.28
4. Step 4: Simplify right side
   67.96x = 4,298.61
5. Step 5: Solve for x
   x = 4,298.61/67.96
6. Step 6: Final answer
   x = 63.25