Finding the Fourth Proportional to 11,077.76, 16,619.86 and 3,581.17

Step by Step Solution

1. Step 1: Write the proportion equation
   11,077.76 : 16,619.86 = 3,581.17 : x
2. Step 2: Convert to fraction form
   11,077.76/16,619.86 = 3,581.17/x
3. Step 3: Cross multiply
   11,077.76x = 16,619.86 × 3,581.17
4. Step 4: Simplify right side
   11,077.76x = 59,518,544.04
5. Step 5: Solve for x
   x = 59,518,544.04/11,077.76
6. Step 6: Final answer
   x = 5,372.80