Finding the Fourth Proportional to 67.52, 101.12 and 56.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67.52 : 101.12 = 56.72 : x
2. Step 2: Convert to fraction form
   67.52/101.12 = 56.72/x
3. Step 3: Cross multiply
   67.52x = 101.12 × 56.72
4. Step 4: Simplify right side
   67.52x = 5,735.53
5. Step 5: Solve for x
   x = 5,735.53/67.52
6. Step 6: Final answer
   x = 84.95