Finding the Fourth Proportional to 16,404.36, 22,641.72 and 10,431.36

Step by Step Solution

1. Step 1: Write the proportion equation
   16,404.36 : 22,641.72 = 10,431.36 : x
2. Step 2: Convert to fraction form
   16,404.36/22,641.72 = 10,431.36/x
3. Step 3: Cross multiply
   16,404.36x = 22,641.72 × 10,431.36
4. Step 4: Simplify right side
   16,404.36x = 236,183,932.34
5. Step 5: Solve for x
   x = 236,183,932.34/16,404.36
6. Step 6: Final answer
   x = 14,397.63