Finding the Fourth Proportional to 7,856.21, 10,841.31 and 4,271.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,856.21 : 10,841.31 = 4,271.15 : x
2. Step 2: Convert to fraction form
   7,856.21/10,841.31 = 4,271.15/x
3. Step 3: Cross multiply
   7,856.21x = 10,841.31 × 4,271.15
4. Step 4: Simplify right side
   7,856.21x = 46,304,861.21
5. Step 5: Solve for x
   x = 46,304,861.21/7,856.21
6. Step 6: Final answer
   x = 5,894.05