Finding the Fourth Proportional to 16,874.42, 23,286.60 and 9,321.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,874.42 : 23,286.60 = 9,321.27 : x
2. Step 2: Convert to fraction form
   16,874.42/23,286.60 = 9,321.27/x
3. Step 3: Cross multiply
   16,874.42x = 23,286.60 × 9,321.27
4. Step 4: Simplify right side
   16,874.42x = 217,060,569.55
5. Step 5: Solve for x
   x = 217,060,569.55/16,874.42
6. Step 6: Final answer
   x = 12,863.29