Finding the Fourth Proportional to 16,783.61, 23,161.46 and 9,230.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,783.61 : 23,161.46 = 9,230.42 : x
2. Step 2: Convert to fraction form
   16,783.61/23,161.46 = 9,230.42/x
3. Step 3: Cross multiply
   16,783.61x = 23,161.46 × 9,230.42
4. Step 4: Simplify right side
   16,783.61x = 213,790,003.61
5. Step 5: Solve for x
   x = 213,790,003.61/16,783.61
6. Step 6: Final answer
   x = 12,738.02