Finding the Fourth Proportional to 19,404.05, 26,756.39 and 13,105.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,404.05 : 26,756.39 = 13,105.49 : x
2. Step 2: Convert to fraction form
   19,404.05/26,756.39 = 13,105.49/x
3. Step 3: Cross multiply
   19,404.05x = 26,756.39 × 13,105.49
4. Step 4: Simplify right side
   19,404.05x = 350,655,500.56
5. Step 5: Solve for x
   x = 350,655,500.56/19,404.05
6. Step 6: Final answer
   x = 18,071.26