Finding the Fourth Proportional to 10,826.06, 16,239.54 and 3,430.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.06 : 16,239.54 = 3,430.35 : x
2. Step 2: Convert to fraction form
   10,826.06/16,239.54 = 3,430.35/x
3. Step 3: Cross multiply
   10,826.06x = 16,239.54 × 3,430.35
4. Step 4: Simplify right side
   10,826.06x = 55,707,366.94
5. Step 5: Solve for x
   x = 55,707,366.94/10,826.06
6. Step 6: Final answer
   x = 5,145.67