Finding the Fourth Proportional to 16,223.56, 24,303.78 and 10,660.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,223.56 : 24,303.78 = 10,660.15 : x
2. Step 2: Convert to fraction form
   16,223.56/24,303.78 = 10,660.15/x
3. Step 3: Cross multiply
   16,223.56x = 24,303.78 × 10,660.15
4. Step 4: Simplify right side
   16,223.56x = 259,081,940.37
5. Step 5: Solve for x
   x = 259,081,940.37/16,223.56
6. Step 6: Final answer
   x = 15,969.49