Finding the Fourth Proportional to 16,178.94, 22,331.16 and 9,896.58

Step by Step Solution

1. Step 1: Write the proportion equation
   16,178.94 : 22,331.16 = 9,896.58 : x
2. Step 2: Convert to fraction form
   16,178.94/22,331.16 = 9,896.58/x
3. Step 3: Cross multiply
   16,178.94x = 22,331.16 × 9,896.58
4. Step 4: Simplify right side
   16,178.94x = 221,002,111.43
5. Step 5: Solve for x
   x = 221,002,111.43/16,178.94
6. Step 6: Final answer
   x = 13,659.86