Finding the Fourth Proportional to 8,573.34, 12,861.20 and 2,650.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573.34 : 12,861.20 = 2,650.71 : x
2. Step 2: Convert to fraction form
   8,573.34/12,861.20 = 2,650.71/x
3. Step 3: Cross multiply
   8,573.34x = 12,861.20 × 2,650.71
4. Step 4: Simplify right side
   8,573.34x = 34,091,293.96
5. Step 5: Solve for x
   x = 34,091,293.96/8,573.34
6. Step 6: Final answer
   x = 3,976.43