Finding the Fourth Proportional to 11,131.12, 16,695.87 and 5,578.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.12 : 16,695.87 = 5,578.84 : x
2. Step 2: Convert to fraction form
   11,131.12/16,695.87 = 5,578.84/x
3. Step 3: Cross multiply
   11,131.12x = 16,695.87 × 5,578.84
4. Step 4: Simplify right side
   11,131.12x = 93,143,587.39
5. Step 5: Solve for x
   x = 93,143,587.39/11,131.12
6. Step 6: Final answer
   x = 8,367.85