Finding the Fourth Proportional to 11,078,555.89, 16,618,674.39 and 2,991,413.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078,555.89 : 16,618,674.39 = 2,991,413.83 : x
2. Step 2: Convert to fraction form
   11,078,555.89/16,618,674.39 = 2,991,413.83/x
3. Step 3: Cross multiply
   11,078,555.89x = 16,618,674.39 × 2,991,413.83
4. Step 4: Simplify right side
   11,078,555.89x = 49,713,332,406,512.82
5. Step 5: Solve for x
   x = 49,713,332,406,512.82/11,078,555.89
6. Step 6: Final answer
   x = 4,487,347.71