Finding the Fourth Proportional to 67.24, 100.69 and 39.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67.24 : 100.69 = 39.75 : x
2. Step 2: Convert to fraction form
   67.24/100.69 = 39.75/x
3. Step 3: Cross multiply
   67.24x = 100.69 × 39.75
4. Step 4: Simplify right side
   67.24x = 4,002.88
5. Step 5: Solve for x
   x = 4,002.88/67.24
6. Step 6: Final answer
   x = 59.53