Finding the Fourth Proportional to 12,026.96, 18,019.80 and 10,809.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,026.96 : 18,019.80 = 10,809.56 : x
2. Step 2: Convert to fraction form
   12,026.96/18,019.80 = 10,809.56/x
3. Step 3: Cross multiply
   12,026.96x = 18,019.80 × 10,809.56
4. Step 4: Simplify right side
   12,026.96x = 194,786,109.29
5. Step 5: Solve for x
   x = 194,786,109.29/12,026.96
6. Step 6: Final answer
   x = 16,195.79