Finding the Fourth Proportional to 139,508.39, 192,517.56 and 79,084.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,508.39 : 192,517.56 = 79,084.62 : x
2. Step 2: Convert to fraction form
   139,508.39/192,517.56 = 79,084.62/x
3. Step 3: Cross multiply
   139,508.39x = 192,517.56 × 79,084.62
4. Step 4: Simplify right side
   139,508.39x = 15,225,178,075.93
5. Step 5: Solve for x
   x = 15,225,178,075.93/139,508.39
6. Step 6: Final answer
   x = 109,134.50