Finding the Fourth Proportional to 141,878.74, 195,794.17 and 78,218.82

Step by Step Solution

1. Step 1: Write the proportion equation
   141,878.74 : 195,794.17 = 78,218.82 : x
2. Step 2: Convert to fraction form
   141,878.74/195,794.17 = 78,218.82/x
3. Step 3: Cross multiply
   141,878.74x = 195,794.17 × 78,218.82
4. Step 4: Simplify right side
   141,878.74x = 15,314,788,940.28
5. Step 5: Solve for x
   x = 15,314,788,940.28/141,878.74
6. Step 6: Final answer
   x = 107,942.80