Finding the Fourth Proportional to 8,019.61, 12,031.47 and 3,338.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,019.61 : 12,031.47 = 3,338.07 : x
2. Step 2: Convert to fraction form
   8,019.61/12,031.47 = 3,338.07/x
3. Step 3: Cross multiply
   8,019.61x = 12,031.47 × 3,338.07
4. Step 4: Simplify right side
   8,019.61x = 40,161,831.43
5. Step 5: Solve for x
   x = 40,161,831.43/8,019.61
6. Step 6: Final answer
   x = 5,007.95