Finding the Fourth Proportional to 11,187.11, 15,441.41 and 7,410.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,187.11 : 15,441.41 = 7,410.89 : x
2. Step 2: Convert to fraction form
   11,187.11/15,441.41 = 7,410.89/x
3. Step 3: Cross multiply
   11,187.11x = 15,441.41 × 7,410.89
4. Step 4: Simplify right side
   11,187.11x = 114,434,532.28
5. Step 5: Solve for x
   x = 114,434,532.28/11,187.11
6. Step 6: Final answer
   x = 10,229.15