Finding the Fourth Proportional to 11,664.41, 16,091.82 and 7,413.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,664.41 : 16,091.82 = 7,413.20 : x
2. Step 2: Convert to fraction form
   11,664.41/16,091.82 = 7,413.20/x
3. Step 3: Cross multiply
   11,664.41x = 16,091.82 × 7,413.20
4. Step 4: Simplify right side
   11,664.41x = 119,291,799.56
5. Step 5: Solve for x
   x = 119,291,799.56/11,664.41
6. Step 6: Final answer
   x = 10,226.99