Finding the Fourth Proportional to 10,826.18, 16,231.34 and 3,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.18 : 16,231.34 = 3,426.50 : x
2. Step 2: Convert to fraction form
   10,826.18/16,231.34 = 3,426.50/x
3. Step 3: Cross multiply
   10,826.18x = 16,231.34 × 3,426.50
4. Step 4: Simplify right side
   10,826.18x = 55,616,686.51
5. Step 5: Solve for x
   x = 55,616,686.51/10,826.18
6. Step 6: Final answer
   x = 5,137.24