Finding the Fourth Proportional to 7,856.71, 10,841.98 and 4,319.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,856.71 : 10,841.98 = 4,319.89 : x
2. Step 2: Convert to fraction form
   7,856.71/10,841.98 = 4,319.89/x
3. Step 3: Cross multiply
   7,856.71x = 10,841.98 × 4,319.89
4. Step 4: Simplify right side
   7,856.71x = 46,836,163.73
5. Step 5: Solve for x
   x = 46,836,163.73/7,856.71
6. Step 6: Final answer
   x = 5,961.30