Finding the Fourth Proportional to 16,563.50, 22,857.75 and 9,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,563.50 : 22,857.75 = 9,111.50 : x
2. Step 2: Convert to fraction form
   16,563.50/22,857.75 = 9,111.50/x
3. Step 3: Cross multiply
   16,563.50x = 22,857.75 × 9,111.50
4. Step 4: Simplify right side
   16,563.50x = 208,268,389.13
5. Step 5: Solve for x
   x = 208,268,389.13/16,563.50
6. Step 6: Final answer
   x = 12,573.94