Finding the Fourth Proportional to 9,780.29, 13,496.81 and 5,304.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.29 : 13,496.81 = 5,304.04 : x
2. Step 2: Convert to fraction form
   9,780.29/13,496.81 = 5,304.04/x
3. Step 3: Cross multiply
   9,780.29x = 13,496.81 × 5,304.04
4. Step 4: Simplify right side
   9,780.29x = 71,587,653.85
5. Step 5: Solve for x
   x = 71,587,653.85/9,780.29
6. Step 6: Final answer
   x = 7,319.58