Finding the Fourth Proportional to 16,513.71, 22,788.92 and 9,440.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,513.71 : 22,788.92 = 9,440.28 : x
2. Step 2: Convert to fraction form
   16,513.71/22,788.92 = 9,440.28/x
3. Step 3: Cross multiply
   16,513.71x = 22,788.92 × 9,440.28
4. Step 4: Simplify right side
   16,513.71x = 215,133,738.50
5. Step 5: Solve for x
   x = 215,133,738.50/16,513.71
6. Step 6: Final answer
   x = 13,027.58