Finding the Fourth Proportional to 16,683.47, 23,022.30 and 9,128.33

Step by Step Solution

1. Step 1: Write the proportion equation
   16,683.47 : 23,022.30 = 9,128.33 : x
2. Step 2: Convert to fraction form
   16,683.47/23,022.30 = 9,128.33/x
3. Step 3: Cross multiply
   16,683.47x = 23,022.30 × 9,128.33
4. Step 4: Simplify right side
   16,683.47x = 210,155,151.76
5. Step 5: Solve for x
   x = 210,155,151.76/16,683.47
6. Step 6: Final answer
   x = 12,596.61