Finding the Fourth Proportional to 15,084.09, 20,816.37 and 8,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,084.09 : 20,816.37 = 8,369.50 : x
2. Step 2: Convert to fraction form
   15,084.09/20,816.37 = 8,369.50/x
3. Step 3: Cross multiply
   15,084.09x = 20,816.37 × 8,369.50
4. Step 4: Simplify right side
   15,084.09x = 174,222,608.72
5. Step 5: Solve for x
   x = 174,222,608.72/15,084.09
6. Step 6: Final answer
   x = 11,550.09