Finding the Fourth Proportional to 12,413.30, 17,131.32 and 7,109.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,413.30 : 17,131.32 = 7,109.82 : x
2. Step 2: Convert to fraction form
   12,413.30/17,131.32 = 7,109.82/x
3. Step 3: Cross multiply
   12,413.30x = 17,131.32 × 7,109.82
4. Step 4: Simplify right side
   12,413.30x = 121,800,601.56
5. Step 5: Solve for x
   x = 121,800,601.56/12,413.30
6. Step 6: Final answer
   x = 9,812.11