Finding the Fourth Proportional to 9,839.22, 13,578.09 and 5,362.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,839.22 : 13,578.09 = 5,362.92 : x
2. Step 2: Convert to fraction form
   9,839.22/13,578.09 = 5,362.92/x
3. Step 3: Cross multiply
   9,839.22x = 13,578.09 × 5,362.92
4. Step 4: Simplify right side
   9,839.22x = 72,818,210.42
5. Step 5: Solve for x
   x = 72,818,210.42/9,839.22
6. Step 6: Final answer
   x = 7,400.81