Finding the Fourth Proportional to 105,096.18, 144,994.82 and 80,904.54

Step by Step Solution

1. Step 1: Write the proportion equation
   105,096.18 : 144,994.82 = 80,904.54 : x
2. Step 2: Convert to fraction form
   105,096.18/144,994.82 = 80,904.54/x
3. Step 3: Cross multiply
   105,096.18x = 144,994.82 × 80,904.54
4. Step 4: Simplify right side
   105,096.18x = 11,730,739,214.48
5. Step 5: Solve for x
   x = 11,730,739,214.48/105,096.18
6. Step 6: Final answer
   x = 111,619.08