Finding the Fourth Proportional to 11,153.50, 15,391.83 and 6,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,153.50 : 15,391.83 = 6,185.50 : x
2. Step 2: Convert to fraction form
   11,153.50/15,391.83 = 6,185.50/x
3. Step 3: Cross multiply
   11,153.50x = 15,391.83 × 6,185.50
4. Step 4: Simplify right side
   11,153.50x = 95,206,164.47
5. Step 5: Solve for x
   x = 95,206,164.47/11,153.50
6. Step 6: Final answer
   x = 8,535.99