Finding the Fourth Proportional to 9,839.15, 13,578.03 and 5,362.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,839.15 : 13,578.03 = 5,362.81 : x
2. Step 2: Convert to fraction form
   9,839.15/13,578.03 = 5,362.81/x
3. Step 3: Cross multiply
   9,839.15x = 13,578.03 × 5,362.81
4. Step 4: Simplify right side
   9,839.15x = 72,816,361.12
5. Step 5: Solve for x
   x = 72,816,361.12/9,839.15
6. Step 6: Final answer
   x = 7,400.68