Finding the Fourth Proportional to 9,945.48, 13,725.08 and 5,469.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.48 : 13,725.08 = 5,469.56 : x
2. Step 2: Convert to fraction form
   9,945.48/13,725.08 = 5,469.56/x
3. Step 3: Cross multiply
   9,945.48x = 13,725.08 × 5,469.56
4. Step 4: Simplify right side
   9,945.48x = 75,070,052.59
5. Step 5: Solve for x
   x = 75,070,052.59/9,945.48
6. Step 6: Final answer
   x = 7,548.16