Finding the Fourth Proportional to 323.82, 485.69 and 104.47

Step by Step Solution

1. Step 1: Write the proportion equation
   323.82 : 485.69 = 104.47 : x
2. Step 2: Convert to fraction form
   323.82/485.69 = 104.47/x
3. Step 3: Cross multiply
   323.82x = 485.69 × 104.47
4. Step 4: Simplify right side
   323.82x = 50,738.30
5. Step 5: Solve for x
   x = 50,738.30/323.82
6. Step 6: Final answer
   x = 156.69