Finding the Fourth Proportional to 9,628.25, 13,285.82 and 5,379.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,628.25 : 13,285.82 = 5,379.54 : x
2. Step 2: Convert to fraction form
   9,628.25/13,285.82 = 5,379.54/x
3. Step 3: Cross multiply
   9,628.25x = 13,285.82 × 5,379.54
4. Step 4: Simplify right side
   9,628.25x = 71,471,573.23
5. Step 5: Solve for x
   x = 71,471,573.23/9,628.25
6. Step 6: Final answer
   x = 7,423.12