Finding the Fourth Proportional to 11,098.58, 16,647.71 and 2,778.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,098.58 : 16,647.71 = 2,778.56 : x
2. Step 2: Convert to fraction form
   11,098.58/16,647.71 = 2,778.56/x
3. Step 3: Cross multiply
   11,098.58x = 16,647.71 × 2,778.56
4. Step 4: Simplify right side
   11,098.58x = 46,256,647.20
5. Step 5: Solve for x
   x = 46,256,647.20/11,098.58
6. Step 6: Final answer
   x = 4,167.80