Finding the Fourth Proportional to 16,786.94, 23,165.96 and 9,619.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,786.94 : 23,165.96 = 9,619.18 : x
2. Step 2: Convert to fraction form
   16,786.94/23,165.96 = 9,619.18/x
3. Step 3: Cross multiply
   16,786.94x = 23,165.96 × 9,619.18
4. Step 4: Simplify right side
   16,786.94x = 222,837,433.10
5. Step 5: Solve for x
   x = 222,837,433.10/16,786.94
6. Step 6: Final answer
   x = 13,274.46