Finding the Fourth Proportional to 16,200.48, 22,358.03 and 9,128.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.48 : 22,358.03 = 9,128.27 : x
2. Step 2: Convert to fraction form
   16,200.48/22,358.03 = 9,128.27/x
3. Step 3: Cross multiply
   16,200.48x = 22,358.03 × 9,128.27
4. Step 4: Simplify right side
   16,200.48x = 204,090,134.51
5. Step 5: Solve for x
   x = 204,090,134.51/16,200.48
6. Step 6: Final answer
   x = 12,597.78