Finding the Fourth Proportional to 12,457.56, 18,595.14 and 10,981.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,457.56 : 18,595.14 = 10,981.38 : x
2. Step 2: Convert to fraction form
   12,457.56/18,595.14 = 10,981.38/x
3. Step 3: Cross multiply
   12,457.56x = 18,595.14 × 10,981.38
4. Step 4: Simplify right side
   12,457.56x = 204,200,298.49
5. Step 5: Solve for x
   x = 204,200,298.49/12,457.56
6. Step 6: Final answer
   x = 16,391.68