Finding the Fourth Proportional to 67.91, 101.82 and 40.49

Step by Step Solution

1. Step 1: Write the proportion equation
   67.91 : 101.82 = 40.49 : x
2. Step 2: Convert to fraction form
   67.91/101.82 = 40.49/x
3. Step 3: Cross multiply
   67.91x = 101.82 × 40.49
4. Step 4: Simplify right side
   67.91x = 4,122.69
5. Step 5: Solve for x
   x = 4,122.69/67.91
6. Step 6: Final answer
   x = 60.71