Finding the Fourth Proportional to 10,818.36, 16,230.51 and 3,422.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.36 : 16,230.51 = 3,422.61 : x
2. Step 2: Convert to fraction form
   10,818.36/16,230.51 = 3,422.61/x
3. Step 3: Cross multiply
   10,818.36x = 16,230.51 × 3,422.61
4. Step 4: Simplify right side
   10,818.36x = 55,550,705.83
5. Step 5: Solve for x
   x = 55,550,705.83/10,818.36
6. Step 6: Final answer
   x = 5,134.85