Finding the Fourth Proportional to 10,569.98, 15,853.60 and 3,995.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,569.98 : 15,853.60 = 3,995.31 : x
2. Step 2: Convert to fraction form
   10,569.98/15,853.60 = 3,995.31/x
3. Step 3: Cross multiply
   10,569.98x = 15,853.60 × 3,995.31
4. Step 4: Simplify right side
   10,569.98x = 63,340,046.62
5. Step 5: Solve for x
   x = 63,340,046.62/10,569.98
6. Step 6: Final answer
   x = 5,992.45