Finding the Fourth Proportional to 16,769.09, 23,141.81 and 9,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,769.09 : 23,141.81 = 9,317.57 : x
2. Step 2: Convert to fraction form
   16,769.09/23,141.81 = 9,317.57/x
3. Step 3: Cross multiply
   16,769.09x = 23,141.81 × 9,317.57
4. Step 4: Simplify right side
   16,769.09x = 215,625,388.01
5. Step 5: Solve for x
   x = 215,625,388.01/16,769.09
6. Step 6: Final answer
   x = 12,858.50