Finding the Fourth Proportional to 67.33, 100.99 and 19.23

Step by Step Solution

1. Step 1: Write the proportion equation
   67.33 : 100.99 = 19.23 : x
2. Step 2: Convert to fraction form
   67.33/100.99 = 19.23/x
3. Step 3: Cross multiply
   67.33x = 100.99 × 19.23
4. Step 4: Simplify right side
   67.33x = 1,942.04
5. Step 5: Solve for x
   x = 1,942.04/67.33
6. Step 6: Final answer
   x = 28.84