Finding the Fourth Proportional to 67.72, 101.59 and 40.84

Step by Step Solution

1. Step 1: Write the proportion equation
   67.72 : 101.59 = 40.84 : x
2. Step 2: Convert to fraction form
   67.72/101.59 = 40.84/x
3. Step 3: Cross multiply
   67.72x = 101.59 × 40.84
4. Step 4: Simplify right side
   67.72x = 4,148.94
5. Step 5: Solve for x
   x = 4,148.94/67.72
6. Step 6: Final answer
   x = 61.27