Finding the Fourth Proportional to 16,697.27, 23,042.51 and 9,143.48

Step by Step Solution

1. Step 1: Write the proportion equation
   16,697.27 : 23,042.51 = 9,143.48 : x
2. Step 2: Convert to fraction form
   16,697.27/23,042.51 = 9,143.48/x
3. Step 3: Cross multiply
   16,697.27x = 23,042.51 × 9,143.48
4. Step 4: Simplify right side
   16,697.27x = 210,688,729.33
5. Step 5: Solve for x
   x = 210,688,729.33/16,697.27
6. Step 6: Final answer
   x = 12,618.15