Finding the Fourth Proportional to 21,976.48, 30,327.96 and 12,040.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,976.48 : 30,327.96 = 12,040.48 : x
2. Step 2: Convert to fraction form
   21,976.48/30,327.96 = 12,040.48/x
3. Step 3: Cross multiply
   21,976.48x = 30,327.96 × 12,040.48
4. Step 4: Simplify right side
   21,976.48x = 365,163,195.82
5. Step 5: Solve for x
   x = 365,163,195.82/21,976.48
6. Step 6: Final answer
   x = 16,616.09