Finding the Fourth Proportional to 78,019.70, 117,222.12 and 49,951.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,019.70 : 117,222.12 = 49,951.98 : x
2. Step 2: Convert to fraction form
   78,019.70/117,222.12 = 49,951.98/x
3. Step 3: Cross multiply
   78,019.70x = 117,222.12 × 49,951.98
4. Step 4: Simplify right side
   78,019.70x = 5,855,476,993.80
5. Step 5: Solve for x
   x = 5,855,476,993.80/78,019.70
6. Step 6: Final answer
   x = 75,051.27