Finding the Fourth Proportional to 16,745.28, 23,109.12 and 9,294.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,745.28 : 23,109.12 = 9,294.72 : x
2. Step 2: Convert to fraction form
   16,745.28/23,109.12 = 9,294.72/x
3. Step 3: Cross multiply
   16,745.28x = 23,109.12 × 9,294.72
4. Step 4: Simplify right side
   16,745.28x = 214,792,799.85
5. Step 5: Solve for x
   x = 214,792,799.85/16,745.28
6. Step 6: Final answer
   x = 12,827.07