Finding the Fourth Proportional to 16,810.32, 23,198.33 and 9,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,810.32 : 23,198.33 = 9,640.50 : x
2. Step 2: Convert to fraction form
   16,810.32/23,198.33 = 9,640.50/x
3. Step 3: Cross multiply
   16,810.32x = 23,198.33 × 9,640.50
4. Step 4: Simplify right side
   16,810.32x = 223,643,452.16
5. Step 5: Solve for x
   x = 223,643,452.16/16,810.32
6. Step 6: Final answer
   x = 13,303.94