Finding the Fourth Proportional to 16,398.34, 24,604.71 and 8,605.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,398.34 : 24,604.71 = 8,605.33 : x
2. Step 2: Convert to fraction form
   16,398.34/24,604.71 = 8,605.33/x
3. Step 3: Cross multiply
   16,398.34x = 24,604.71 × 8,605.33
4. Step 4: Simplify right side
   16,398.34x = 211,731,649.10
5. Step 5: Solve for x
   x = 211,731,649.10/16,398.34
6. Step 6: Final answer
   x = 12,911.77