Finding the Fourth Proportional to 67.88, 101.82 and 40.77

Step by Step Solution

1. Step 1: Write the proportion equation
   67.88 : 101.82 = 40.77 : x
2. Step 2: Convert to fraction form
   67.88/101.82 = 40.77/x
3. Step 3: Cross multiply
   67.88x = 101.82 × 40.77
4. Step 4: Simplify right side
   67.88x = 4,150.69
5. Step 5: Solve for x
   x = 4,150.69/67.88
6. Step 6: Final answer
   x = 61.15