Finding the Fourth Proportional to 6,086.78, 8,399.87 and 3,570.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,086.78 : 8,399.87 = 3,570.81 : x
2. Step 2: Convert to fraction form
   6,086.78/8,399.87 = 3,570.81/x
3. Step 3: Cross multiply
   6,086.78x = 8,399.87 × 3,570.81
4. Step 4: Simplify right side
   6,086.78x = 29,994,339.79
5. Step 5: Solve for x
   x = 29,994,339.79/6,086.78
6. Step 6: Final answer
   x = 4,927.78