Finding the Fourth Proportional to 16,862.42, 23,270 and 9,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,862.42 : 23,270 = 9,789.50 : x
2. Step 2: Convert to fraction form
   16,862.42/23,270 = 9,789.50/x
3. Step 3: Cross multiply
   16,862.42x = 23,270 × 9,789.50
4. Step 4: Simplify right side
   16,862.42x = 227,801,665
5. Step 5: Solve for x
   x = 227,801,665/16,862.42
6. Step 6: Final answer
   x = 13,509.43