Finding the Fourth Proportional to 6,392.82, 8,821.81 and 3,560.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,392.82 : 8,821.81 = 3,560.10 : x
2. Step 2: Convert to fraction form
   6,392.82/8,821.81 = 3,560.10/x
3. Step 3: Cross multiply
   6,392.82x = 8,821.81 × 3,560.10
4. Step 4: Simplify right side
   6,392.82x = 31,406,546.77
5. Step 5: Solve for x
   x = 31,406,546.77/6,392.82
6. Step 6: Final answer
   x = 4,912.78