Finding the Fourth Proportional to 8,271.86, 12,405.13 and 2,723.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,271.86 : 12,405.13 = 2,723.89 : x
2. Step 2: Convert to fraction form
   8,271.86/12,405.13 = 2,723.89/x
3. Step 3: Cross multiply
   8,271.86x = 12,405.13 × 2,723.89
4. Step 4: Simplify right side
   8,271.86x = 33,790,171.73
5. Step 5: Solve for x
   x = 33,790,171.73/8,271.86
6. Step 6: Final answer
   x = 4,084.95