Finding the Fourth Proportional to 16,818.72, 23,219.15 and 10,105.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.72 : 23,219.15 = 10,105.98 : x
2. Step 2: Convert to fraction form
   16,818.72/23,219.15 = 10,105.98/x
3. Step 3: Cross multiply
   16,818.72x = 23,219.15 × 10,105.98
4. Step 4: Simplify right side
   16,818.72x = 234,652,214.99
5. Step 5: Solve for x
   x = 234,652,214.99/16,818.72
6. Step 6: Final answer
   x = 13,951.85