Finding the Fourth Proportional to 6,456.39, 8,892.23 and 5,571.87

Step by Step Solution

1. Step 1: Write the proportion equation
   6,456.39 : 8,892.23 = 5,571.87 : x
2. Step 2: Convert to fraction form
   6,456.39/8,892.23 = 5,571.87/x
3. Step 3: Cross multiply
   6,456.39x = 8,892.23 × 5,571.87
4. Step 4: Simplify right side
   6,456.39x = 49,546,321.71
5. Step 5: Solve for x
   x = 49,546,321.71/6,456.39
6. Step 6: Final answer
   x = 7,674.00