Finding the Fourth Proportional to 9,780.37, 13,496.83 and 5,304.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,780.37 : 13,496.83 = 5,304.13 : x
2. Step 2: Convert to fraction form
   9,780.37/13,496.83 = 5,304.13/x
3. Step 3: Cross multiply
   9,780.37x = 13,496.83 × 5,304.13
4. Step 4: Simplify right side
   9,780.37x = 71,588,923.74
5. Step 5: Solve for x
   x = 71,588,923.74/9,780.37
6. Step 6: Final answer
   x = 7,319.66