Finding the Fourth Proportional to 12,831.12, 19,249.56 and 4,066.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,831.12 : 19,249.56 = 4,066.56 : x
2. Step 2: Convert to fraction form
   12,831.12/19,249.56 = 4,066.56/x
3. Step 3: Cross multiply
   12,831.12x = 19,249.56 × 4,066.56
4. Step 4: Simplify right side
   12,831.12x = 78,279,490.71
5. Step 5: Solve for x
   x = 78,279,490.71/12,831.12
6. Step 6: Final answer
   x = 6,100.75