Finding the Fourth Proportional to 19,078.18, 26,327.89 and 10,581.60

Step by Step Solution

1. Step 1: Write the proportion equation
   19,078.18 : 26,327.89 = 10,581.60 : x
2. Step 2: Convert to fraction form
   19,078.18/26,327.89 = 10,581.60/x
3. Step 3: Cross multiply
   19,078.18x = 26,327.89 × 10,581.60
4. Step 4: Simplify right side
   19,078.18x = 278,591,290.46
5. Step 5: Solve for x
   x = 278,591,290.46/19,078.18
6. Step 6: Final answer
   x = 14,602.61