Finding the Fourth Proportional to 16,558.14, 22,849.79 and 9,389.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,558.14 : 22,849.79 = 9,389.37 : x
2. Step 2: Convert to fraction form
   16,558.14/22,849.79 = 9,389.37/x
3. Step 3: Cross multiply
   16,558.14x = 22,849.79 × 9,389.37
4. Step 4: Simplify right side
   16,558.14x = 214,545,085.79
5. Step 5: Solve for x
   x = 214,545,085.79/16,558.14
6. Step 6: Final answer
   x = 12,957.08