Finding the Fourth Proportional to 11,087.42, 16,619.22 and 5,529.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.42 : 16,619.22 = 5,529.78 : x
2. Step 2: Convert to fraction form
   11,087.42/16,619.22 = 5,529.78/x
3. Step 3: Cross multiply
   11,087.42x = 16,619.22 × 5,529.78
4. Step 4: Simplify right side
   11,087.42x = 91,900,630.37
5. Step 5: Solve for x
   x = 91,900,630.37/11,087.42
6. Step 6: Final answer
   x = 8,288.73