Finding the Fourth Proportional to 9,847.99, 13,590.11 and 5,371.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,847.99 : 13,590.11 = 5,371.79 : x
2. Step 2: Convert to fraction form
   9,847.99/13,590.11 = 5,371.79/x
3. Step 3: Cross multiply
   9,847.99x = 13,590.11 × 5,371.79
4. Step 4: Simplify right side
   9,847.99x = 73,003,162.48
5. Step 5: Solve for x
   x = 73,003,162.48/9,847.99
6. Step 6: Final answer
   x = 7,413.00