Finding the Fourth Proportional to 19,078.56, 26,328.42 and 10,581.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,078.56 : 26,328.42 = 10,581.98 : x
2. Step 2: Convert to fraction form
   19,078.56/26,328.42 = 10,581.98/x
3. Step 3: Cross multiply
   19,078.56x = 26,328.42 × 10,581.98
4. Step 4: Simplify right side
   19,078.56x = 278,606,879.69
5. Step 5: Solve for x
   x = 278,606,879.69/19,078.56
6. Step 6: Final answer
   x = 14,603.14