Finding the Fourth Proportional to 13,086.16, 18,057.27 and 8,846.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.16 : 18,057.27 = 8,846.45 : x
2. Step 2: Convert to fraction form
   13,086.16/18,057.27 = 8,846.45/x
3. Step 3: Cross multiply
   13,086.16x = 18,057.27 × 8,846.45
4. Step 4: Simplify right side
   13,086.16x = 159,742,623.79
5. Step 5: Solve for x
   x = 159,742,623.79/13,086.16
6. Step 6: Final answer
   x = 12,206.99