Finding the Fourth Proportional to 10,976.12, 16,464.71 and 3,580.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.12 : 16,464.71 = 3,580.57 : x
2. Step 2: Convert to fraction form
   10,976.12/16,464.71 = 3,580.57/x
3. Step 3: Cross multiply
   10,976.12x = 16,464.71 × 3,580.57
4. Step 4: Simplify right side
   10,976.12x = 58,953,014.47
5. Step 5: Solve for x
   x = 58,953,014.47/10,976.12
6. Step 6: Final answer
   x = 5,371.02