Finding the Fourth Proportional to 10,826.56, 16,240.43 and 3,430.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.56 : 16,240.43 = 3,430.49 : x
2. Step 2: Convert to fraction form
   10,826.56/16,240.43 = 3,430.49/x
3. Step 3: Cross multiply
   10,826.56x = 16,240.43 × 3,430.49
4. Step 4: Simplify right side
   10,826.56x = 55,712,560.08
5. Step 5: Solve for x
   x = 55,712,560.08/10,826.56
6. Step 6: Final answer
   x = 5,145.91