Finding the Fourth Proportional to 140,429.67, 193,794.24 and 79,999.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,429.67 : 193,794.24 = 79,999.42 : x
2. Step 2: Convert to fraction form
   140,429.67/193,794.24 = 79,999.42/x
3. Step 3: Cross multiply
   140,429.67x = 193,794.24 × 79,999.42
4. Step 4: Simplify right side
   140,429.67x = 15,503,426,799.34
5. Step 5: Solve for x
   x = 15,503,426,799.34/140,429.67
6. Step 6: Final answer
   x = 110,399.94