Finding the Fourth Proportional to 139,598.16, 192,644.52 and 79,180.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,598.16 : 192,644.52 = 79,180.56 : x
2. Step 2: Convert to fraction form
   139,598.16/192,644.52 = 79,180.56/x
3. Step 3: Cross multiply
   139,598.16x = 192,644.52 × 79,180.56
4. Step 4: Simplify right side
   139,598.16x = 15,253,700,974.53
5. Step 5: Solve for x
   x = 15,253,700,974.53/139,598.16
6. Step 6: Final answer
   x = 109,268.64