Finding the Fourth Proportional to 9,628.98, 13,286.69 and 5,379.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.98 : 13,286.69 = 5,379.52 : x
2. Step 2: Convert to fraction form
   9,628.98/13,286.69 = 5,379.52/x
3. Step 3: Cross multiply
   9,628.98x = 13,286.69 × 5,379.52
4. Step 4: Simplify right side
   9,628.98x = 71,475,954.47
5. Step 5: Solve for x
   x = 71,475,954.47/9,628.98
6. Step 6: Final answer
   x = 7,423.00