Finding the Fourth Proportional to 16,257.59, 22,432.42 and 10,285.05

Step by Step Solution

1. Step 1: Write the proportion equation
   16,257.59 : 22,432.42 = 10,285.05 : x
2. Step 2: Convert to fraction form
   16,257.59/22,432.42 = 10,285.05/x
3. Step 3: Cross multiply
   16,257.59x = 22,432.42 × 10,285.05
4. Step 4: Simplify right side
   16,257.59x = 230,718,658.30
5. Step 5: Solve for x
   x = 230,718,658.30/16,257.59
6. Step 6: Final answer
   x = 14,191.44