Finding the Fourth Proportional to 16,243.50, 22,405.50 and 9,956.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,243.50 : 22,405.50 = 9,956.28 : x
2. Step 2: Convert to fraction form
   16,243.50/22,405.50 = 9,956.28/x
3. Step 3: Cross multiply
   16,243.50x = 22,405.50 × 9,956.28
4. Step 4: Simplify right side
   16,243.50x = 223,075,431.54
5. Step 5: Solve for x
   x = 223,075,431.54/16,243.50
6. Step 6: Final answer
   x = 13,733.21