Finding the Fourth Proportional to 6,443.69, 8,894.21 and 4,452.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.69 : 8,894.21 = 4,452.30 : x
2. Step 2: Convert to fraction form
   6,443.69/8,894.21 = 4,452.30/x
3. Step 3: Cross multiply
   6,443.69x = 8,894.21 × 4,452.30
4. Step 4: Simplify right side
   6,443.69x = 39,599,668.92
5. Step 5: Solve for x
   x = 39,599,668.92/6,443.69
6. Step 6: Final answer
   x = 6,145.50