Finding the Fourth Proportional to 139,924.24, 193,099.96 and 79,493.78

Step by Step Solution

1. Step 1: Write the proportion equation
   139,924.24 : 193,099.96 = 79,493.78 : x
2. Step 2: Convert to fraction form
   139,924.24/193,099.96 = 79,493.78/x
3. Step 3: Cross multiply
   139,924.24x = 193,099.96 × 79,493.78
4. Step 4: Simplify right side
   139,924.24x = 15,350,245,738.25
5. Step 5: Solve for x
   x = 15,350,245,738.25/139,924.24
6. Step 6: Final answer
   x = 109,703.98