Finding the Fourth Proportional to 67.24, 100.72 and 35.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67.24 : 100.72 = 35.20 : x
2. Step 2: Convert to fraction form
   67.24/100.72 = 35.20/x
3. Step 3: Cross multiply
   67.24x = 100.72 × 35.20
4. Step 4: Simplify right side
   67.24x = 3,545.34
5. Step 5: Solve for x
   x = 3,545.34/67.24
6. Step 6: Final answer
   x = 52.73