Finding the Fourth Proportional to 108,162.77, 149,305.67 and 81,383.12

Step by Step Solution

1. Step 1: Write the proportion equation
   108,162.77 : 149,305.67 = 81,383.12 : x
2. Step 2: Convert to fraction form
   108,162.77/149,305.67 = 81,383.12/x
3. Step 3: Cross multiply
   108,162.77x = 149,305.67 × 81,383.12
4. Step 4: Simplify right side
   108,162.77x = 12,150,961,258.29
5. Step 5: Solve for x
   x = 12,150,961,258.29/108,162.77
6. Step 6: Final answer
   x = 112,339.59