Finding the Fourth Proportional to 108.72, 150.01 and 67.28

Step by Step Solution

1. Step 1: Write the proportion equation
   108.72 : 150.01 = 67.28 : x
2. Step 2: Convert to fraction form
   108.72/150.01 = 67.28/x
3. Step 3: Cross multiply
   108.72x = 150.01 × 67.28
4. Step 4: Simplify right side
   108.72x = 10,091.75
5. Step 5: Solve for x
   x = 10,091.75/108.72
6. Step 6: Final answer
   x = 92.82