Finding the Fourth Proportional to 9,792.03, 13,518.90 and 9,231.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,792.03 : 13,518.90 = 9,231.61 : x
2. Step 2: Convert to fraction form
   9,792.03/13,518.90 = 9,231.61/x
3. Step 3: Cross multiply
   9,792.03x = 13,518.90 × 9,231.61
4. Step 4: Simplify right side
   9,792.03x = 124,801,241.31
5. Step 5: Solve for x
   x = 124,801,241.31/9,792.03
6. Step 6: Final answer
   x = 12,745.18