Finding the Fourth Proportional to 10,976.13, 16,464.72 and 3,580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,976.13 : 16,464.72 = 3,580.56 : x
2. Step 2: Convert to fraction form
   10,976.13/16,464.72 = 3,580.56/x
3. Step 3: Cross multiply
   10,976.13x = 16,464.72 × 3,580.56
4. Step 4: Simplify right side
   10,976.13x = 58,952,917.84
5. Step 5: Solve for x
   x = 58,952,917.84/10,976.13
6. Step 6: Final answer
   x = 5,371.01