Finding the Fourth Proportional to 141,997.88, 195,955.98 and 78,338.36

Step by Step Solution

1. Step 1: Write the proportion equation
   141,997.88 : 195,955.98 = 78,338.36 : x
2. Step 2: Convert to fraction form
   141,997.88/195,955.98 = 78,338.36/x
3. Step 3: Cross multiply
   141,997.88x = 195,955.98 × 78,338.36
4. Step 4: Simplify right side
   141,997.88x = 15,350,870,105.39
5. Step 5: Solve for x
   x = 15,350,870,105.39/141,997.88
6. Step 6: Final answer
   x = 108,106.33