Finding the Fourth Proportional to 10,871.89, 16,287.09 and 5,861.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,871.89 : 16,287.09 = 5,861.83 : x
2. Step 2: Convert to fraction form
   10,871.89/16,287.09 = 5,861.83/x
3. Step 3: Cross multiply
   10,871.89x = 16,287.09 × 5,861.83
4. Step 4: Simplify right side
   10,871.89x = 95,472,152.77
5. Step 5: Solve for x
   x = 95,472,152.77/10,871.89
6. Step 6: Final answer
   x = 8,781.56