Finding the Fourth Proportional to 6,394.69, 8,824.38 and 3,561.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,394.69 : 8,824.38 = 3,561.91 : x
2. Step 2: Convert to fraction form
   6,394.69/8,824.38 = 3,561.91/x
3. Step 3: Cross multiply
   6,394.69x = 8,824.38 × 3,561.91
4. Step 4: Simplify right side
   6,394.69x = 31,431,647.37
5. Step 5: Solve for x
   x = 31,431,647.37/6,394.69
6. Step 6: Final answer
   x = 4,915.27