Finding the Fourth Proportional to 141,843.06, 195,741 and 78,186.78

Step by Step Solution

1. Step 1: Write the proportion equation
   141,843.06 : 195,741 = 78,186.78 : x
2. Step 2: Convert to fraction form
   141,843.06/195,741 = 78,186.78/x
3. Step 3: Cross multiply
   141,843.06x = 195,741 × 78,186.78
4. Step 4: Simplify right side
   141,843.06x = 15,304,358,503.98
5. Step 5: Solve for x
   x = 15,304,358,503.98/141,843.06
6. Step 6: Final answer
   x = 107,896.42