Finding the Fourth Proportional to 139,927.05, 193,104.53 and 79,507.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,927.05 : 193,104.53 = 79,507.94 : x
2. Step 2: Convert to fraction form
   139,927.05/193,104.53 = 79,507.94/x
3. Step 3: Cross multiply
   139,927.05x = 193,104.53 × 79,507.94
4. Step 4: Simplify right side
   139,927.05x = 15,353,342,021.91
5. Step 5: Solve for x
   x = 15,353,342,021.91/139,927.05
6. Step 6: Final answer
   x = 109,723.90