Finding the Fourth Proportional to 9,780.28, 13,496.76 and 5,304.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.28 : 13,496.76 = 5,304.04 : x
2. Step 2: Convert to fraction form
   9,780.28/13,496.76 = 5,304.04/x
3. Step 3: Cross multiply
   9,780.28x = 13,496.76 × 5,304.04
4. Step 4: Simplify right side
   9,780.28x = 71,587,354.91
5. Step 5: Solve for x
   x = 71,587,354.91/9,780.28
6. Step 6: Final answer
   x = 7,319.56