Finding the Fourth Proportional to 11,205.42, 16,810.83 and 3,413.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,205.42 : 16,810.83 = 3,413.76 : x
2. Step 2: Convert to fraction form
   11,205.42/16,810.83 = 3,413.76/x
3. Step 3: Cross multiply
   11,205.42x = 16,810.83 × 3,413.76
4. Step 4: Simplify right side
   11,205.42x = 57,388,139.02
5. Step 5: Solve for x
   x = 57,388,139.02/11,205.42
6. Step 6: Final answer
   x = 5,121.46