Finding the Fourth Proportional to 6,260.83, 8,638.71 and 3,571.99

Step by Step Solution

1. Step 1: Write the proportion equation
   6,260.83 : 8,638.71 = 3,571.99 : x
2. Step 2: Convert to fraction form
   6,260.83/8,638.71 = 3,571.99/x
3. Step 3: Cross multiply
   6,260.83x = 8,638.71 × 3,571.99
4. Step 4: Simplify right side
   6,260.83x = 30,857,385.73
5. Step 5: Solve for x
   x = 30,857,385.73/6,260.83
6. Step 6: Final answer
   x = 4,928.64