Finding the Fourth Proportional to 140,111.82, 193,371.03 and 79,691.58

Step by Step Solution

1. Step 1: Write the proportion equation
   140,111.82 : 193,371.03 = 79,691.58 : x
2. Step 2: Convert to fraction form
   140,111.82/193,371.03 = 79,691.58/x
3. Step 3: Cross multiply
   140,111.82x = 193,371.03 × 79,691.58
4. Step 4: Simplify right side
   140,111.82x = 15,410,042,906.93
5. Step 5: Solve for x
   x = 15,410,042,906.93/140,111.82
6. Step 6: Final answer
   x = 109,983.89