Finding the Fourth Proportional to 13,086.10, 18,057.18 and 8,846.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,086.10 : 18,057.18 = 8,846.39 : x
2. Step 2: Convert to fraction form
   13,086.10/18,057.18 = 8,846.39/x
3. Step 3: Cross multiply
   13,086.10x = 18,057.18 × 8,846.39
4. Step 4: Simplify right side
   13,086.10x = 159,740,749.71
5. Step 5: Solve for x
   x = 159,740,749.71/13,086.10
6. Step 6: Final answer
   x = 12,206.90