Finding the Fourth Proportional to 16,172.96, 22,318.52 and 9,002.75

Step by Step Solution

1. Step 1: Write the proportion equation
   16,172.96 : 22,318.52 = 9,002.75 : x
2. Step 2: Convert to fraction form
   16,172.96/22,318.52 = 9,002.75/x
3. Step 3: Cross multiply
   16,172.96x = 22,318.52 × 9,002.75
4. Step 4: Simplify right side
   16,172.96x = 200,928,066.71
5. Step 5: Solve for x
   x = 200,928,066.71/16,172.96
6. Step 6: Final answer
   x = 12,423.71