Finding the Fourth Proportional to 67.84, 101.76 and 42.27

Step by Step Solution

1. Step 1: Write the proportion equation
   67.84 : 101.76 = 42.27 : x
2. Step 2: Convert to fraction form
   67.84/101.76 = 42.27/x
3. Step 3: Cross multiply
   67.84x = 101.76 × 42.27
4. Step 4: Simplify right side
   67.84x = 4,301.43
5. Step 5: Solve for x
   x = 4,301.43/67.84
6. Step 6: Final answer
   x = 63.41