Finding the Fourth Proportional to 9,890.00, 13,648.23 and 5,413.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890.00 : 13,648.23 = 5,413.79 : x
2. Step 2: Convert to fraction form
   9,890.00/13,648.23 = 5,413.79/x
3. Step 3: Cross multiply
   9,890.00x = 13,648.23 × 5,413.79
4. Step 4: Simplify right side
   9,890.00x = 73,888,582.85
5. Step 5: Solve for x
   x = 73,888,582.85/9,890.00
6. Step 6: Final answer
   x = 7,471.04