Finding the Fourth Proportional to 8,185.24, 11,286.91 and 5,355.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,185.24 : 11,286.91 = 5,355.05 : x
2. Step 2: Convert to fraction form
   8,185.24/11,286.91 = 5,355.05/x
3. Step 3: Cross multiply
   8,185.24x = 11,286.91 × 5,355.05
4. Step 4: Simplify right side
   8,185.24x = 60,441,967.40
5. Step 5: Solve for x
   x = 60,441,967.40/8,185.24
6. Step 6: Final answer
   x = 7,384.26