Finding the Fourth Proportional to 89,995.78, 135,022.83 and 30,831.96

Step by Step Solution

1. Step 1: Write the proportion equation
   89,995.78 : 135,022.83 = 30,831.96 : x
2. Step 2: Convert to fraction form
   89,995.78/135,022.83 = 30,831.96/x
3. Step 3: Cross multiply
   89,995.78x = 135,022.83 × 30,831.96
4. Step 4: Simplify right side
   89,995.78x = 4,163,018,493.65
5. Step 5: Solve for x
   x = 4,163,018,493.65/89,995.78
6. Step 6: Final answer
   x = 46,257.93