Finding the Fourth Proportional to 16,631.81, 22,952.37 and 9,078.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,631.81 : 22,952.37 = 9,078.62 : x
2. Step 2: Convert to fraction form
   16,631.81/22,952.37 = 9,078.62/x
3. Step 3: Cross multiply
   16,631.81x = 22,952.37 × 9,078.62
4. Step 4: Simplify right side
   16,631.81x = 208,375,845.33
5. Step 5: Solve for x
   x = 208,375,845.33/16,631.81
6. Step 6: Final answer
   x = 12,528.75