Finding the Fourth Proportional to 67.22, 100.69 and 50.13

Step by Step Solution

1. Step 1: Write the proportion equation
   67.22 : 100.69 = 50.13 : x
2. Step 2: Convert to fraction form
   67.22/100.69 = 50.13/x
3. Step 3: Cross multiply
   67.22x = 100.69 × 50.13
4. Step 4: Simplify right side
   67.22x = 5,047.59
5. Step 5: Solve for x
   x = 5,047.59/67.22
6. Step 6: Final answer
   x = 75.09