Finding the Fourth Proportional to 140,406.09, 193,760.10 and 79,976.71

Step by Step Solution

1. Step 1: Write the proportion equation
   140,406.09 : 193,760.10 = 79,976.71 : x
2. Step 2: Convert to fraction form
   140,406.09/193,760.10 = 79,976.71/x
3. Step 3: Cross multiply
   140,406.09x = 193,760.10 × 79,976.71
4. Step 4: Simplify right side
   140,406.09x = 15,496,295,327.27
5. Step 5: Solve for x
   x = 15,496,295,327.27/140,406.09
6. Step 6: Final answer
   x = 110,367.69