Finding the Fourth Proportional to 8,603.82, 12,913.83 and 5,323.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,603.82 : 12,913.83 = 5,323.32 : x
2. Step 2: Convert to fraction form
   8,603.82/12,913.83 = 5,323.32/x
3. Step 3: Cross multiply
   8,603.82x = 12,913.83 × 5,323.32
4. Step 4: Simplify right side
   8,603.82x = 68,744,449.52
5. Step 5: Solve for x
   x = 68,744,449.52/8,603.82
6. Step 6: Final answer
   x = 7,989.99