Finding the Fourth Proportional to 8,834.78, 13,253.99 and 3,839.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,834.78 : 13,253.99 = 3,839.31 : x
2. Step 2: Convert to fraction form
   8,834.78/13,253.99 = 3,839.31/x
3. Step 3: Cross multiply
   8,834.78x = 13,253.99 × 3,839.31
4. Step 4: Simplify right side
   8,834.78x = 50,886,157.15
5. Step 5: Solve for x
   x = 50,886,157.15/8,834.78
6. Step 6: Final answer
   x = 5,759.76