Finding the Fourth Proportional to 16,818.53, 23,204.31 and 10,105.65

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.53 : 23,204.31 = 10,105.65 : x
2. Step 2: Convert to fraction form
   16,818.53/23,204.31 = 10,105.65/x
3. Step 3: Cross multiply
   16,818.53x = 23,204.31 × 10,105.65
4. Step 4: Simplify right side
   16,818.53x = 234,494,635.35
5. Step 5: Solve for x
   x = 234,494,635.35/16,818.53
6. Step 6: Final answer
   x = 13,942.64