Finding the Fourth Proportional to 16,176.65, 22,321.17 and 9,005.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,176.65 : 22,321.17 = 9,005.31 : x
2. Step 2: Convert to fraction form
   16,176.65/22,321.17 = 9,005.31/x
3. Step 3: Cross multiply
   16,176.65x = 22,321.17 × 9,005.31
4. Step 4: Simplify right side
   16,176.65x = 201,009,055.41
5. Step 5: Solve for x
   x = 201,009,055.41/16,176.65
6. Step 6: Final answer
   x = 12,425.88