Finding the Fourth Proportional to 14,815.37, 20,446.47 and 8,443.91

Step by Step Solution

1. Step 1: Write the proportion equation
   14,815.37 : 20,446.47 = 8,443.91 : x
2. Step 2: Convert to fraction form
   14,815.37/20,446.47 = 8,443.91/x
3. Step 3: Cross multiply
   14,815.37x = 20,446.47 × 8,443.91
4. Step 4: Simplify right side
   14,815.37x = 172,648,152.50
5. Step 5: Solve for x
   x = 172,648,152.50/14,815.37
6. Step 6: Final answer
   x = 11,653.31