Finding the Fourth Proportional to 139,488.36, 192,487.50 and 79,055.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,488.36 : 192,487.50 = 79,055.52 : x
2. Step 2: Convert to fraction form
   139,488.36/192,487.50 = 79,055.52/x
3. Step 3: Cross multiply
   139,488.36x = 192,487.50 × 79,055.52
4. Step 4: Simplify right side
   139,488.36x = 15,217,199,406
5. Step 5: Solve for x
   x = 15,217,199,406/139,488.36
6. Step 6: Final answer
   x = 109,092.97