Finding the Fourth Proportional to 14,105.30, 21,116.42 and 10,423.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,105.30 : 21,116.42 = 10,423.94 : x
2. Step 2: Convert to fraction form
   14,105.30/21,116.42 = 10,423.94/x
3. Step 3: Cross multiply
   14,105.30x = 21,116.42 × 10,423.94
4. Step 4: Simplify right side
   14,105.30x = 220,116,137.39
5. Step 5: Solve for x
   x = 220,116,137.39/14,105.30
6. Step 6: Final answer
   x = 15,605.21