Finding the Fourth Proportional to 3,936.47, 5,427.27 and 3,225.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936.47 : 5,427.27 = 3,225.69 : x
2. Step 2: Convert to fraction form
   3,936.47/5,427.27 = 3,225.69/x
3. Step 3: Cross multiply
   3,936.47x = 5,427.27 × 3,225.69
4. Step 4: Simplify right side
   3,936.47x = 17,506,690.57
5. Step 5: Solve for x
   x = 17,506,690.57/3,936.47
6. Step 6: Final answer
   x = 4,447.31