Finding the Fourth Proportional to 16,809.09, 23,196.35 and 9,255.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,809.09 : 23,196.35 = 9,255.27 : x
2. Step 2: Convert to fraction form
   16,809.09/23,196.35 = 9,255.27/x
3. Step 3: Cross multiply
   16,809.09x = 23,196.35 × 9,255.27
4. Step 4: Simplify right side
   16,809.09x = 214,688,482.26
5. Step 5: Solve for x
   x = 214,688,482.26/16,809.09
6. Step 6: Final answer
   x = 12,772.17