Finding the Fourth Proportional to 141,418.82, 195,158.72 and 77,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   141,418.82 : 195,158.72 = 77,760.72 : x
2. Step 2: Convert to fraction form
   141,418.82/195,158.72 = 77,760.72/x
3. Step 3: Cross multiply
   141,418.82x = 195,158.72 × 77,760.72
4. Step 4: Simplify right side
   141,418.82x = 15,175,682,581.48
5. Step 5: Solve for x
   x = 15,175,682,581.48/141,418.82
6. Step 6: Final answer
   x = 107,310.21