Finding the Fourth Proportional to 7,044.72, 9,721.36 and 3,857.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,044.72 : 9,721.36 = 3,857.42 : x
2. Step 2: Convert to fraction form
   7,044.72/9,721.36 = 3,857.42/x
3. Step 3: Cross multiply
   7,044.72x = 9,721.36 × 3,857.42
4. Step 4: Simplify right side
   7,044.72x = 37,499,368.49
5. Step 5: Solve for x
   x = 37,499,368.49/7,044.72
6. Step 6: Final answer
   x = 5,323.05