Finding the Fourth Proportional to 67.33, 100.97 and 28.81

Step by Step Solution

1. Step 1: Write the proportion equation
   67.33 : 100.97 = 28.81 : x
2. Step 2: Convert to fraction form
   67.33/100.97 = 28.81/x
3. Step 3: Cross multiply
   67.33x = 100.97 × 28.81
4. Step 4: Simplify right side
   67.33x = 2,908.55
5. Step 5: Solve for x
   x = 2,908.55/67.33
6. Step 6: Final answer
   x = 43.20