Finding the Fourth Proportional to 67.55, 101.32 and 52.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67.55 : 101.32 = 52.28 : x
2. Step 2: Convert to fraction form
   67.55/101.32 = 52.28/x
3. Step 3: Cross multiply
   67.55x = 101.32 × 52.28
4. Step 4: Simplify right side
   67.55x = 5,297.04
5. Step 5: Solve for x
   x = 5,297.04/67.55
6. Step 6: Final answer
   x = 78.42