Finding the Fourth Proportional to 16,956, 23,399.28 and 10,674.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,956 : 23,399.28 = 10,674.72 : x
2. Step 2: Convert to fraction form
   16,956/23,399.28 = 10,674.72/x
3. Step 3: Cross multiply
   16,956x = 23,399.28 × 10,674.72
4. Step 4: Simplify right side
   16,956x = 249,780,762.20
5. Step 5: Solve for x
   x = 249,780,762.20/16,956
6. Step 6: Final answer
   x = 14,731.11