Finding the Fourth Proportional to 67.06, 100.57 and 32.81

Step by Step Solution

1. Step 1: Write the proportion equation
   67.06 : 100.57 = 32.81 : x
2. Step 2: Convert to fraction form
   67.06/100.57 = 32.81/x
3. Step 3: Cross multiply
   67.06x = 100.57 × 32.81
4. Step 4: Simplify right side
   67.06x = 3,300.06
5. Step 5: Solve for x
   x = 3,300.06/67.06
6. Step 6: Final answer
   x = 49.21