Finding the Fourth Proportional to 7,044.39, 9,720.82 and 3,857.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,044.39 : 9,720.82 = 3,857.72 : x
2. Step 2: Convert to fraction form
   7,044.39/9,720.82 = 3,857.72/x
3. Step 3: Cross multiply
   7,044.39x = 9,720.82 × 3,857.72
4. Step 4: Simplify right side
   7,044.39x = 37,500,201.73
5. Step 5: Solve for x
   x = 37,500,201.73/7,044.39
6. Step 6: Final answer
   x = 5,323.42