Finding the Fourth Proportional to 16,142.16, 22,277.90 and 9,772.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,142.16 : 22,277.90 = 9,772.23 : x
2. Step 2: Convert to fraction form
   16,142.16/22,277.90 = 9,772.23/x
3. Step 3: Cross multiply
   16,142.16x = 22,277.90 × 9,772.23
4. Step 4: Simplify right side
   16,142.16x = 217,704,713.86
5. Step 5: Solve for x
   x = 217,704,713.86/16,142.16
6. Step 6: Final answer
   x = 13,486.72