Finding the Fourth Proportional to 105,836.22, 146,110.77 and 81,761.94

Step by Step Solution

1. Step 1: Write the proportion equation
   105,836.22 : 146,110.77 = 81,761.94 : x
2. Step 2: Convert to fraction form
   105,836.22/146,110.77 = 81,761.94/x
3. Step 3: Cross multiply
   105,836.22x = 146,110.77 × 81,761.94
4. Step 4: Simplify right side
   105,836.22x = 11,946,300,010.09
5. Step 5: Solve for x
   x = 11,946,300,010.09/105,836.22
6. Step 6: Final answer
   x = 112,875.35