Finding the Fourth Proportional to 7,821.53, 10,785.24 and 5,582.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,821.53 : 10,785.24 = 5,582.48 : x
2. Step 2: Convert to fraction form
   7,821.53/10,785.24 = 5,582.48/x
3. Step 3: Cross multiply
   7,821.53x = 10,785.24 × 5,582.48
4. Step 4: Simplify right side
   7,821.53x = 60,208,413.56
5. Step 5: Solve for x
   x = 60,208,413.56/7,821.53
6. Step 6: Final answer
   x = 7,697.78