Finding the Fourth Proportional to 10,976.88, 16,465.28 and 3,581.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.88 : 16,465.28 = 3,581.31 : x
2. Step 2: Convert to fraction form
   10,976.88/16,465.28 = 3,581.31/x
3. Step 3: Cross multiply
   10,976.88x = 16,465.28 × 3,581.31
4. Step 4: Simplify right side
   10,976.88x = 58,967,315.76
5. Step 5: Solve for x
   x = 58,967,315.76/10,976.88
6. Step 6: Final answer
   x = 5,371.95