Finding the Fourth Proportional to 7,044.20, 9,721.00 and 3,900.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,044.20 : 9,721.00 = 3,900.32 : x
2. Step 2: Convert to fraction form
   7,044.20/9,721.00 = 3,900.32/x
3. Step 3: Cross multiply
   7,044.20x = 9,721.00 × 3,900.32
4. Step 4: Simplify right side
   7,044.20x = 37,914,942.61
5. Step 5: Solve for x
   x = 37,914,942.61/7,044.20
6. Step 6: Final answer
   x = 5,382.44