Finding the Fourth Proportional to 11,078.30, 16,620.24 and 3,682.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,078.30 : 16,620.24 = 3,682.78 : x
2. Step 2: Convert to fraction form
   11,078.30/16,620.24 = 3,682.78/x
3. Step 3: Cross multiply
   11,078.30x = 16,620.24 × 3,682.78
4. Step 4: Simplify right side
   11,078.30x = 61,208,687.47
5. Step 5: Solve for x
   x = 61,208,687.47/11,078.30
6. Step 6: Final answer
   x = 5,525.10