Finding the Fourth Proportional to 16,491.57, 22,758.30 and 8,938.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,491.57 : 22,758.30 = 8,938.09 : x
2. Step 2: Convert to fraction form
   16,491.57/22,758.30 = 8,938.09/x
3. Step 3: Cross multiply
   16,491.57x = 22,758.30 × 8,938.09
4. Step 4: Simplify right side
   16,491.57x = 203,415,733.65
5. Step 5: Solve for x
   x = 203,415,733.65/16,491.57
6. Step 6: Final answer
   x = 12,334.53