Finding the Fourth Proportional to 12,790.09, 17,650.36 and 7,413.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.09 : 17,650.36 = 7,413.56 : x
2. Step 2: Convert to fraction form
   12,790.09/17,650.36 = 7,413.56/x
3. Step 3: Cross multiply
   12,790.09x = 17,650.36 × 7,413.56
4. Step 4: Simplify right side
   12,790.09x = 130,852,002.88
5. Step 5: Solve for x
   x = 130,852,002.88/12,790.09
6. Step 6: Final answer
   x = 10,230.73