Finding the Fourth Proportional to 111,831.22, 154,331.33 and 64,093.78

Step by Step Solution

1. Step 1: Write the proportion equation
   111,831.22 : 154,331.33 = 64,093.78 : x
2. Step 2: Convert to fraction form
   111,831.22/154,331.33 = 64,093.78/x
3. Step 3: Cross multiply
   111,831.22x = 154,331.33 × 64,093.78
4. Step 4: Simplify right side
   111,831.22x = 9,891,677,605.83
5. Step 5: Solve for x
   x = 9,891,677,605.83/111,831.22
6. Step 6: Final answer
   x = 88,451.85