Finding the Fourth Proportional to 16,956.72, 23,396.04 and 9,880.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,956.72 : 23,396.04 = 9,880.56 : x
2. Step 2: Convert to fraction form
   16,956.72/23,396.04 = 9,880.56/x
3. Step 3: Cross multiply
   16,956.72x = 23,396.04 × 9,880.56
4. Step 4: Simplify right side
   16,956.72x = 231,165,976.98
5. Step 5: Solve for x
   x = 231,165,976.98/16,956.72
6. Step 6: Final answer
   x = 13,632.71