Finding the Fourth Proportional to 9,945.03, 13,724.03 and 7,404.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.03 : 13,724.03 = 7,404.15 : x
2. Step 2: Convert to fraction form
   9,945.03/13,724.03 = 7,404.15/x
3. Step 3: Cross multiply
   9,945.03x = 13,724.03 × 7,404.15
4. Step 4: Simplify right side
   9,945.03x = 101,614,776.72
5. Step 5: Solve for x
   x = 101,614,776.72/9,945.03
6. Step 6: Final answer
   x = 10,217.64