Finding the Fourth Proportional to 6,365.50, 8,784.40 and 3,571

Step by Step Solution

1. Step 1: Write the proportion equation
   6,365.50 : 8,784.40 = 3,571 : x
2. Step 2: Convert to fraction form
   6,365.50/8,784.40 = 3,571/x
3. Step 3: Cross multiply
   6,365.50x = 8,784.40 × 3,571
4. Step 4: Simplify right side
   6,365.50x = 31,369,092.40
5. Step 5: Solve for x
   x = 31,369,092.40/6,365.50
6. Step 6: Final answer
   x = 4,927.99