Finding the Fourth Proportional to 10,826.80, 16,240.77 and 3,431.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.80 : 16,240.77 = 3,431.83 : x
2. Step 2: Convert to fraction form
   10,826.80/16,240.77 = 3,431.83/x
3. Step 3: Cross multiply
   10,826.80x = 16,240.77 × 3,431.83
4. Step 4: Simplify right side
   10,826.80x = 55,735,633.02
5. Step 5: Solve for x
   x = 55,735,633.02/10,826.80
6. Step 6: Final answer
   x = 5,147.93