Finding the Fourth Proportional to 16,780.61, 23,157.32 and 9,227.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,780.61 : 23,157.32 = 9,227.42 : x
2. Step 2: Convert to fraction form
   16,780.61/23,157.32 = 9,227.42/x
3. Step 3: Cross multiply
   16,780.61x = 23,157.32 × 9,227.42
4. Step 4: Simplify right side
   16,780.61x = 213,682,375.61
5. Step 5: Solve for x
   x = 213,682,375.61/16,780.61
6. Step 6: Final answer
   x = 12,733.89