Finding the Fourth Proportional to 6,826.55, 10,230.21 and 5,433.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,826.55 : 10,230.21 = 5,433.69 : x
2. Step 2: Convert to fraction form
   6,826.55/10,230.21 = 5,433.69/x
3. Step 3: Cross multiply
   6,826.55x = 10,230.21 × 5,433.69
4. Step 4: Simplify right side
   6,826.55x = 55,587,789.77
5. Step 5: Solve for x
   x = 55,587,789.77/6,826.55
6. Step 6: Final answer
   x = 8,142.88