Finding the Fourth Proportional to 16,405.30, 24,549.63 and 9,445.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,405.30 : 24,549.63 = 9,445.78 : x
2. Step 2: Convert to fraction form
   16,405.30/24,549.63 = 9,445.78/x
3. Step 3: Cross multiply
   16,405.30x = 24,549.63 × 9,445.78
4. Step 4: Simplify right side
   16,405.30x = 231,890,404.06
5. Step 5: Solve for x
   x = 231,890,404.06/16,405.30
6. Step 6: Final answer
   x = 14,135.09