Finding the Fourth Proportional to 7,042.73, 9,718.59 and 3,855.41

Step by Step Solution

1. Step 1: Write the proportion equation
   7,042.73 : 9,718.59 = 3,855.41 : x
2. Step 2: Convert to fraction form
   7,042.73/9,718.59 = 3,855.41/x
3. Step 3: Cross multiply
   7,042.73x = 9,718.59 × 3,855.41
4. Step 4: Simplify right side
   7,042.73x = 37,469,172.59
5. Step 5: Solve for x
   x = 37,469,172.59/7,042.73
6. Step 6: Final answer
   x = 5,320.27