Finding the Fourth Proportional to 11,078.84, 16,632.78 and 7,404.68

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078.84 : 16,632.78 = 7,404.68 : x
2. Step 2: Convert to fraction form
   11,078.84/16,632.78 = 7,404.68/x
3. Step 3: Cross multiply
   11,078.84x = 16,632.78 × 7,404.68
4. Step 4: Simplify right side
   11,078.84x = 123,160,413.41
5. Step 5: Solve for x
   x = 123,160,413.41/11,078.84
6. Step 6: Final answer
   x = 11,116.72