Finding the Fourth Proportional to 3,725.40, 5,144.72 and 3,375.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,725.40 : 5,144.72 = 3,375.48 : x
2. Step 2: Convert to fraction form
   3,725.40/5,144.72 = 3,375.48/x
3. Step 3: Cross multiply
   3,725.40x = 5,144.72 × 3,375.48
4. Step 4: Simplify right side
   3,725.40x = 17,365,899.47
5. Step 5: Solve for x
   x = 17,365,899.47/3,725.40
6. Step 6: Final answer
   x = 4,661.49