Finding the Fourth Proportional to 10,818.17, 16,230.13 and 3,422.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.17 : 16,230.13 = 3,422.76 : x
2. Step 2: Convert to fraction form
   10,818.17/16,230.13 = 3,422.76/x
3. Step 3: Cross multiply
   10,818.17x = 16,230.13 × 3,422.76
4. Step 4: Simplify right side
   10,818.17x = 55,551,839.76
5. Step 5: Solve for x
   x = 55,551,839.76/10,818.17
6. Step 6: Final answer
   x = 5,135.05