Finding the Fourth Proportional to 9,072.05, 13,609.29 and 3,228.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,072.05 : 13,609.29 = 3,228.71 : x
2. Step 2: Convert to fraction form
   9,072.05/13,609.29 = 3,228.71/x
3. Step 3: Cross multiply
   9,072.05x = 13,609.29 × 3,228.71
4. Step 4: Simplify right side
   9,072.05x = 43,940,450.72
5. Step 5: Solve for x
   x = 43,940,450.72/9,072.05
6. Step 6: Final answer
   x = 4,843.50