Finding the Fourth Proportional to 10,144.48, 15,209.56 and 3,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.48 : 15,209.56 = 3,899.23 : x
2. Step 2: Convert to fraction form
   10,144.48/15,209.56 = 3,899.23/x
3. Step 3: Cross multiply
   10,144.48x = 15,209.56 × 3,899.23
4. Step 4: Simplify right side
   10,144.48x = 59,305,572.64
5. Step 5: Solve for x
   x = 59,305,572.64/10,144.48
6. Step 6: Final answer
   x = 5,846.09