Finding the Fourth Proportional to 10,662.98, 15,993.99 and 3,643.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,662.98 : 15,993.99 = 3,643.61 : x
2. Step 2: Convert to fraction form
   10,662.98/15,993.99 = 3,643.61/x
3. Step 3: Cross multiply
   10,662.98x = 15,993.99 × 3,643.61
4. Step 4: Simplify right side
   10,662.98x = 58,275,781.93
5. Step 5: Solve for x
   x = 58,275,781.93/10,662.98
6. Step 6: Final answer
   x = 5,465.25