Finding the Fourth Proportional to 16,865.48, 23,274.42 and 9,792.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,865.48 : 23,274.42 = 9,792.20 : x
2. Step 2: Convert to fraction form
   16,865.48/23,274.42 = 9,792.20/x
3. Step 3: Cross multiply
   16,865.48x = 23,274.42 × 9,792.20
4. Step 4: Simplify right side
   16,865.48x = 227,907,775.52
5. Step 5: Solve for x
   x = 227,907,775.52/16,865.48
6. Step 6: Final answer
   x = 13,513.27