Finding the Fourth Proportional to 16,603.89, 24,913.12 and 8,813.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,603.89 : 24,913.12 = 8,813.31 : x
2. Step 2: Convert to fraction form
   16,603.89/24,913.12 = 8,813.31/x
3. Step 3: Cross multiply
   16,603.89x = 24,913.12 × 8,813.31
4. Step 4: Simplify right side
   16,603.89x = 219,567,049.63
5. Step 5: Solve for x
   x = 219,567,049.63/16,603.89
6. Step 6: Final answer
   x = 13,223.83