Finding the Fourth Proportional to 21,443.86, 32,162.01 and 8,285.41

Step by Step Solution

1. Step 1: Write the proportion equation
   21,443.86 : 32,162.01 = 8,285.41 : x
2. Step 2: Convert to fraction form
   21,443.86/32,162.01 = 8,285.41/x
3. Step 3: Cross multiply
   21,443.86x = 32,162.01 × 8,285.41
4. Step 4: Simplify right side
   21,443.86x = 266,475,439.27
5. Step 5: Solve for x
   x = 266,475,439.27/21,443.86
6. Step 6: Final answer
   x = 12,426.65