Finding the Fourth Proportional to 16,085.36, 24,112.92 and 8,678.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,085.36 : 24,112.92 = 8,678.72 : x
2. Step 2: Convert to fraction form
   16,085.36/24,112.92 = 8,678.72/x
3. Step 3: Cross multiply
   16,085.36x = 24,112.92 × 8,678.72
4. Step 4: Simplify right side
   16,085.36x = 209,269,281.06
5. Step 5: Solve for x
   x = 209,269,281.06/16,085.36
6. Step 6: Final answer
   x = 13,009.92