Finding the Fourth Proportional to 120,081.68, 179,243.22 and 105,894.39

Step by Step Solution

1. Step 1: Write the proportion equation
   120,081.68 : 179,243.22 = 105,894.39 : x
2. Step 2: Convert to fraction form
   120,081.68/179,243.22 = 105,894.39/x
3. Step 3: Cross multiply
   120,081.68x = 179,243.22 × 105,894.39
4. Step 4: Simplify right side
   120,081.68x = 18,980,851,443.54
5. Step 5: Solve for x
   x = 18,980,851,443.54/120,081.68
6. Step 6: Final answer
   x = 158,066.17