Finding the Fourth Proportional to 139,921.94, 193,097.50 and 79,502.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,921.94 : 193,097.50 = 79,502.83 : x
2. Step 2: Convert to fraction form
   139,921.94/193,097.50 = 79,502.83/x
3. Step 3: Cross multiply
   139,921.94x = 193,097.50 × 79,502.83
4. Step 4: Simplify right side
   139,921.94x = 15,351,797,034.42
5. Step 5: Solve for x
   x = 15,351,797,034.42/139,921.94
6. Step 6: Final answer
   x = 109,716.87