Finding the Fourth Proportional to 16,872.69, 23,286.38 and 9,799.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,872.69 : 23,286.38 = 9,799.13 : x
2. Step 2: Convert to fraction form
   16,872.69/23,286.38 = 9,799.13/x
3. Step 3: Cross multiply
   16,872.69x = 23,286.38 × 9,799.13
4. Step 4: Simplify right side
   16,872.69x = 228,186,099.42
5. Step 5: Solve for x
   x = 228,186,099.42/16,872.69
6. Step 6: Final answer
   x = 13,523.99