Finding the Fourth Proportional to 10,415.62, 15,629.91 and 3,843.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,415.62 : 15,629.91 = 3,843.28 : x
2. Step 2: Convert to fraction form
   10,415.62/15,629.91 = 3,843.28/x
3. Step 3: Cross multiply
   10,415.62x = 15,629.91 × 3,843.28
4. Step 4: Simplify right side
   10,415.62x = 60,070,120.50
5. Step 5: Solve for x
   x = 60,070,120.50/10,415.62
6. Step 6: Final answer
   x = 5,767.31