Finding the Fourth Proportional to 9,945.42, 13,725.01 and 5,469.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.42 : 13,725.01 = 5,469.36 : x
2. Step 2: Convert to fraction form
   9,945.42/13,725.01 = 5,469.36/x
3. Step 3: Cross multiply
   9,945.42x = 13,725.01 × 5,469.36
4. Step 4: Simplify right side
   9,945.42x = 75,067,020.69
5. Step 5: Solve for x
   x = 75,067,020.69/9,945.42
6. Step 6: Final answer
   x = 7,547.90