Finding the Fourth Proportional to 7,044.09, 9,720.86 and 3,900.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,044.09 : 9,720.86 = 3,900.27 : x
2. Step 2: Convert to fraction form
   7,044.09/9,720.86 = 3,900.27/x
3. Step 3: Cross multiply
   7,044.09x = 9,720.86 × 3,900.27
4. Step 4: Simplify right side
   7,044.09x = 37,913,978.63
5. Step 5: Solve for x
   x = 37,913,978.63/7,044.09
6. Step 6: Final answer
   x = 5,382.38