Finding the Fourth Proportional to 10,808.37, 16,183.35 and 5,603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,808.37 : 16,183.35 = 5,603.31 : x
2. Step 2: Convert to fraction form
   10,808.37/16,183.35 = 5,603.31/x
3. Step 3: Cross multiply
   10,808.37x = 16,183.35 × 5,603.31
4. Step 4: Simplify right side
   10,808.37x = 90,680,326.89
5. Step 5: Solve for x
   x = 90,680,326.89/10,808.37
6. Step 6: Final answer
   x = 8,389.82