Finding the Fourth Proportional to 139,487.42, 192,488.58 and 79,063.62

Step by Step Solution

1. Step 1: Write the proportion equation
   139,487.42 : 192,488.58 = 79,063.62 : x
2. Step 2: Convert to fraction form
   139,487.42/192,488.58 = 79,063.62/x
3. Step 3: Cross multiply
   139,487.42x = 192,488.58 × 79,063.62
4. Step 4: Simplify right side
   139,487.42x = 15,218,843,943.46
5. Step 5: Solve for x
   x = 15,218,843,943.46/139,487.42
6. Step 6: Final answer
   x = 109,105.50