Finding the Fourth Proportional to 19,919.50, 27,490.74 and 10,968.82

Step by Step Solution

1. Step 1: Write the proportion equation
   19,919.50 : 27,490.74 = 10,968.82 : x
2. Step 2: Convert to fraction form
   19,919.50/27,490.74 = 10,968.82/x
3. Step 3: Cross multiply
   19,919.50x = 27,490.74 × 10,968.82
4. Step 4: Simplify right side
   19,919.50x = 301,540,978.73
5. Step 5: Solve for x
   x = 301,540,978.73/19,919.50
6. Step 6: Final answer
   x = 15,137.98