Finding the Fourth Proportional to 67.89, 101.69 and 40.82

Step by Step Solution

1. Step 1: Write the proportion equation
   67.89 : 101.69 = 40.82 : x
2. Step 2: Convert to fraction form
   67.89/101.69 = 40.82/x
3. Step 3: Cross multiply
   67.89x = 101.69 × 40.82
4. Step 4: Simplify right side
   67.89x = 4,150.60
5. Step 5: Solve for x
   x = 4,150.60/67.89
6. Step 6: Final answer
   x = 61.14