Finding the Fourth Proportional to 11,110.54, 16,665.51 and 2,790.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,110.54 : 16,665.51 = 2,790.83 : x
2. Step 2: Convert to fraction form
   11,110.54/16,665.51 = 2,790.83/x
3. Step 3: Cross multiply
   11,110.54x = 16,665.51 × 2,790.83
4. Step 4: Simplify right side
   11,110.54x = 46,510,605.27
5. Step 5: Solve for x
   x = 46,510,605.27/11,110.54
6. Step 6: Final answer
   x = 4,186.17