Finding the Fourth Proportional to 141,755.67, 195,615.81 and 78,081.57

Step by Step Solution

1. Step 1: Write the proportion equation
   141,755.67 : 195,615.81 = 78,081.57 : x
2. Step 2: Convert to fraction form
   141,755.67/195,615.81 = 78,081.57/x
3. Step 3: Cross multiply
   141,755.67x = 195,615.81 × 78,081.57
4. Step 4: Simplify right side
   141,755.67x = 15,273,989,561.62
5. Step 5: Solve for x
   x = 15,273,989,561.62/141,755.67
6. Step 6: Final answer
   x = 107,748.70