Finding the Fourth Proportional to 9,945.59, 13,724.44 and 5,469.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.59 : 13,724.44 = 5,469.53 : x
2. Step 2: Convert to fraction form
   9,945.59/13,724.44 = 5,469.53/x
3. Step 3: Cross multiply
   9,945.59x = 13,724.44 × 5,469.53
4. Step 4: Simplify right side
   9,945.59x = 75,066,140.34
5. Step 5: Solve for x
   x = 75,066,140.34/9,945.59
6. Step 6: Final answer
   x = 7,547.68