Finding the Fourth Proportional to 50.67, 69.81 and 48.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50.67 : 69.81 = 48.72 : x
2. Step 2: Convert to fraction form
   50.67/69.81 = 48.72/x
3. Step 3: Cross multiply
   50.67x = 69.81 × 48.72
4. Step 4: Simplify right side
   50.67x = 3,401.14
5. Step 5: Solve for x
   x = 3,401.14/50.67
6. Step 6: Final answer
   x = 67.12