Finding the Fourth Proportional to 6,561.57, 9,065.61 and 5,847.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,561.57 : 9,065.61 = 5,847.15 : x
2. Step 2: Convert to fraction form
   6,561.57/9,065.61 = 5,847.15/x
3. Step 3: Cross multiply
   6,561.57x = 9,065.61 × 5,847.15
4. Step 4: Simplify right side
   6,561.57x = 53,007,981.51
5. Step 5: Solve for x
   x = 53,007,981.51/6,561.57
6. Step 6: Final answer
   x = 8,078.55