Finding the Fourth Proportional to 67.16, 100.71 and 50.22

Step by Step Solution

1. Step 1: Write the proportion equation
   67.16 : 100.71 = 50.22 : x
2. Step 2: Convert to fraction form
   67.16/100.71 = 50.22/x
3. Step 3: Cross multiply
   67.16x = 100.71 × 50.22
4. Step 4: Simplify right side
   67.16x = 5,057.66
5. Step 5: Solve for x
   x = 5,057.66/67.16
6. Step 6: Final answer
   x = 75.30