Finding the Fourth Proportional to 12,413.90, 17,128.32 and 7,695.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,413.90 : 17,128.32 = 7,695.92 : x
2. Step 2: Convert to fraction form
   12,413.90/17,128.32 = 7,695.92/x
3. Step 3: Cross multiply
   12,413.90x = 17,128.32 × 7,695.92
4. Step 4: Simplify right side
   12,413.90x = 131,818,180.45
5. Step 5: Solve for x
   x = 131,818,180.45/12,413.90
6. Step 6: Final answer
   x = 10,618.60