Finding the Fourth Proportional to 9,945.75, 13,725.48 and 5,469.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,945.75 : 13,725.48 = 5,469.84 : x
2. Step 2: Convert to fraction form
   9,945.75/13,725.48 = 5,469.84/x
3. Step 3: Cross multiply
   9,945.75x = 13,725.48 × 5,469.84
4. Step 4: Simplify right side
   9,945.75x = 75,076,179.52
5. Step 5: Solve for x
   x = 75,076,179.52/9,945.75
6. Step 6: Final answer
   x = 7,548.57