Finding the Fourth Proportional to 67.71, 101.49 and 42.03

Step by Step Solution

1. Step 1: Write the proportion equation
   67.71 : 101.49 = 42.03 : x
2. Step 2: Convert to fraction form
   67.71/101.49 = 42.03/x
3. Step 3: Cross multiply
   67.71x = 101.49 × 42.03
4. Step 4: Simplify right side
   67.71x = 4,265.62
5. Step 5: Solve for x
   x = 4,265.62/67.71
6. Step 6: Final answer
   x = 63.00