Finding the Fourth Proportional to 9,944.99, 13,724.45 and 5,469.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,944.99 : 13,724.45 = 5,469.09 : x
2. Step 2: Convert to fraction form
   9,944.99/13,724.45 = 5,469.09/x
3. Step 3: Cross multiply
   9,944.99x = 13,724.45 × 5,469.09
4. Step 4: Simplify right side
   9,944.99x = 75,060,224.91
5. Step 5: Solve for x
   x = 75,060,224.91/9,944.99
6. Step 6: Final answer
   x = 7,547.54