Finding the Fourth Proportional to 67.10, 100.82 and 38.25

Step by Step Solution

1. Step 1: Write the proportion equation
   67.10 : 100.82 = 38.25 : x
2. Step 2: Convert to fraction form
   67.10/100.82 = 38.25/x
3. Step 3: Cross multiply
   67.10x = 100.82 × 38.25
4. Step 4: Simplify right side
   67.10x = 3,856.46
5. Step 5: Solve for x
   x = 3,856.46/67.10
6. Step 6: Final answer
   x = 57.48