Finding the Fourth Proportional to 67.72, 101.49 and 29.15

Step by Step Solution

1. Step 1: Write the proportion equation
   67.72 : 101.49 = 29.15 : x
2. Step 2: Convert to fraction form
   67.72/101.49 = 29.15/x
3. Step 3: Cross multiply
   67.72x = 101.49 × 29.15
4. Step 4: Simplify right side
   67.72x = 2,958.61
5. Step 5: Solve for x
   x = 2,958.61/67.72
6. Step 6: Final answer
   x = 43.69