Finding the Fourth Proportional to 9,839.55, 13,578.67 and 5,363.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,839.55 : 13,578.67 = 5,363.43 : x
2. Step 2: Convert to fraction form
   9,839.55/13,578.67 = 5,363.43/x
3. Step 3: Cross multiply
   9,839.55x = 13,578.67 × 5,363.43
4. Step 4: Simplify right side
   9,839.55x = 72,828,246.04
5. Step 5: Solve for x
   x = 72,828,246.04/9,839.55
6. Step 6: Final answer
   x = 7,401.58