Finding the Fourth Proportional to 67.32, 100.99 and 28.81

Step by Step Solution

1. Step 1: Write the proportion equation
   67.32 : 100.99 = 28.81 : x
2. Step 2: Convert to fraction form
   67.32/100.99 = 28.81/x
3. Step 3: Cross multiply
   67.32x = 100.99 × 28.81
4. Step 4: Simplify right side
   67.32x = 2,909.38
5. Step 5: Solve for x
   x = 2,909.38/67.32
6. Step 6: Final answer
   x = 43.22