Finding the Fourth Proportional to 11,807.10, 17,710.56 and 4,413.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,807.10 : 17,710.56 = 4,413.42 : x
2. Step 2: Convert to fraction form
   11,807.10/17,710.56 = 4,413.42/x
3. Step 3: Cross multiply
   11,807.10x = 17,710.56 × 4,413.42
4. Step 4: Simplify right side
   11,807.10x = 78,164,139.72
5. Step 5: Solve for x
   x = 78,164,139.72/11,807.10
6. Step 6: Final answer
   x = 6,620.10