Finding the Fourth Proportional to 19,365.78, 26,724.78 and 10,982.28

Step by Step Solution

1. Step 1: Write the proportion equation
   19,365.78 : 26,724.78 = 10,982.28 : x
2. Step 2: Convert to fraction form
   19,365.78/26,724.78 = 10,982.28/x
3. Step 3: Cross multiply
   19,365.78x = 26,724.78 × 10,982.28
4. Step 4: Simplify right side
   19,365.78x = 293,499,016.90
5. Step 5: Solve for x
   x = 293,499,016.90/19,365.78
6. Step 6: Final answer
   x = 15,155.55