Finding the Fourth Proportional to 105,093.68, 144,991.37 and 80,902.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,093.68 : 144,991.37 = 80,902.04 : x
2. Step 2: Convert to fraction form
   105,093.68/144,991.37 = 80,902.04/x
3. Step 3: Cross multiply
   105,093.68x = 144,991.37 × 80,902.04
4. Step 4: Simplify right side
   105,093.68x = 11,730,097,092.69
5. Step 5: Solve for x
   x = 11,730,097,092.69/105,093.68
6. Step 6: Final answer
   x = 111,615.63