Finding the Fourth Proportional to 67.33, 100.62 and 54.37

Step by Step Solution

1. Step 1: Write the proportion equation
   67.33 : 100.62 = 54.37 : x
2. Step 2: Convert to fraction form
   67.33/100.62 = 54.37/x
3. Step 3: Cross multiply
   67.33x = 100.62 × 54.37
4. Step 4: Simplify right side
   67.33x = 5,470.68
5. Step 5: Solve for x
   x = 5,470.68/67.33
6. Step 6: Final answer
   x = 81.25