Finding the Fourth Proportional to 139,764.57, 192,878.27 and 79,329.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,764.57 : 192,878.27 = 79,329.56 : x
2. Step 2: Convert to fraction form
   139,764.57/192,878.27 = 79,329.56/x
3. Step 3: Cross multiply
   139,764.57x = 192,878.27 × 79,329.56
4. Step 4: Simplify right side
   139,764.57x = 15,300,946,931.62
5. Step 5: Solve for x
   x = 15,300,946,931.62/139,764.57
6. Step 6: Final answer
   x = 109,476.58