Finding the Fourth Proportional to 15,013.37, 20,717.69 and 8,298.81

Step by Step Solution

1. Step 1: Write the proportion equation
   15,013.37 : 20,717.69 = 8,298.81 : x
2. Step 2: Convert to fraction form
   15,013.37/20,717.69 = 8,298.81/x
3. Step 3: Cross multiply
   15,013.37x = 20,717.69 × 8,298.81
4. Step 4: Simplify right side
   15,013.37x = 171,932,131.45
5. Step 5: Solve for x
   x = 171,932,131.45/15,013.37
6. Step 6: Final answer
   x = 11,451.94