Finding the Fourth Proportional to 16,868, 23,286.48 and 10,586.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,868 : 23,286.48 = 10,586.72 : x
2. Step 2: Convert to fraction form
   16,868/23,286.48 = 10,586.72/x
3. Step 3: Cross multiply
   16,868x = 23,286.48 × 10,586.72
4. Step 4: Simplify right side
   16,868x = 246,527,443.55
5. Step 5: Solve for x
   x = 246,527,443.55/16,868
6. Step 6: Final answer
   x = 14,615.10