Finding the Fourth Proportional to 51,003.78, 76,517.97 and 17,719

Step by Step Solution

1. Step 1: Write the proportion equation
   51,003.78 : 76,517.97 = 17,719 : x
2. Step 2: Convert to fraction form
   51,003.78/76,517.97 = 17,719/x
3. Step 3: Cross multiply
   51,003.78x = 76,517.97 × 17,719
4. Step 4: Simplify right side
   51,003.78x = 1,355,821,910.43
5. Step 5: Solve for x
   x = 1,355,821,910.43/51,003.78
6. Step 6: Final answer
   x = 26,582.77