Finding the Fourth Proportional to 11,078.21, 16,619.41 and 3,583.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078.21 : 16,619.41 = 3,583.78 : x
2. Step 2: Convert to fraction form
   11,078.21/16,619.41 = 3,583.78/x
3. Step 3: Cross multiply
   11,078.21x = 16,619.41 × 3,583.78
4. Step 4: Simplify right side
   11,078.21x = 59,560,309.17
5. Step 5: Solve for x
   x = 59,560,309.17/11,078.21
6. Step 6: Final answer
   x = 5,376.35