Finding the Fourth Proportional to 10,421.94, 15,628.19 and 3,843.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,421.94 : 15,628.19 = 3,843.48 : x
2. Step 2: Convert to fraction form
   10,421.94/15,628.19 = 3,843.48/x
3. Step 3: Cross multiply
   10,421.94x = 15,628.19 × 3,843.48
4. Step 4: Simplify right side
   10,421.94x = 60,066,616.48
5. Step 5: Solve for x
   x = 60,066,616.48/10,421.94
6. Step 6: Final answer
   x = 5,763.48