Finding the Fourth Proportional to 16,301.80, 22,496.25 and 9,131.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,301.80 : 22,496.25 = 9,131.68 : x
2. Step 2: Convert to fraction form
   16,301.80/22,496.25 = 9,131.68/x
3. Step 3: Cross multiply
   16,301.80x = 22,496.25 × 9,131.68
4. Step 4: Simplify right side
   16,301.80x = 205,428,556.20
5. Step 5: Solve for x
   x = 205,428,556.20/16,301.80
6. Step 6: Final answer
   x = 12,601.59