Finding the Fourth Proportional to 67.50, 101.16 and 56.16

Step by Step Solution

1. Step 1: Write the proportion equation
   67.50 : 101.16 = 56.16 : x
2. Step 2: Convert to fraction form
   67.50/101.16 = 56.16/x
3. Step 3: Cross multiply
   67.50x = 101.16 × 56.16
4. Step 4: Simplify right side
   67.50x = 5,681.15
5. Step 5: Solve for x
   x = 5,681.15/67.50
6. Step 6: Final answer
   x = 84.17