Finding the Fourth Proportional to 16,769.15, 23,127.69 and 10,391.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,769.15 : 23,127.69 = 10,391.31 : x
2. Step 2: Convert to fraction form
   16,769.15/23,127.69 = 10,391.31/x
3. Step 3: Cross multiply
   16,769.15x = 23,127.69 × 10,391.31
4. Step 4: Simplify right side
   16,769.15x = 240,326,996.37
5. Step 5: Solve for x
   x = 240,326,996.37/16,769.15
6. Step 6: Final answer
   x = 14,331.50