Finding the Fourth Proportional to 67.79, 101.49 and 42.04

Step by Step Solution

1. Step 1: Write the proportion equation
   67.79 : 101.49 = 42.04 : x
2. Step 2: Convert to fraction form
   67.79/101.49 = 42.04/x
3. Step 3: Cross multiply
   67.79x = 101.49 × 42.04
4. Step 4: Simplify right side
   67.79x = 4,266.61
5. Step 5: Solve for x
   x = 4,266.61/67.79
6. Step 6: Final answer
   x = 62.94