Finding the Fourth Proportional to 16,872.29, 23,286.61 and 9,802.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,872.29 : 23,286.61 = 9,802.81 : x
2. Step 2: Convert to fraction form
   16,872.29/23,286.61 = 9,802.81/x
3. Step 3: Cross multiply
   16,872.29x = 23,286.61 × 9,802.81
4. Step 4: Simplify right side
   16,872.29x = 228,274,213.37
5. Step 5: Solve for x
   x = 228,274,213.37/16,872.29
6. Step 6: Final answer
   x = 13,529.53