Finding the Fourth Proportional to 67.38, 100.98 and 31.32

Step by Step Solution

1. Step 1: Write the proportion equation
   67.38 : 100.98 = 31.32 : x
2. Step 2: Convert to fraction form
   67.38/100.98 = 31.32/x
3. Step 3: Cross multiply
   67.38x = 100.98 × 31.32
4. Step 4: Simplify right side
   67.38x = 3,162.69
5. Step 5: Solve for x
   x = 3,162.69/67.38
6. Step 6: Final answer
   x = 46.94