Finding the Fourth Proportional to 141,608.88, 195,418.71 and 77,945.31

Step by Step Solution

1. Step 1: Write the proportion equation
   141,608.88 : 195,418.71 = 77,945.31 : x
2. Step 2: Convert to fraction form
   141,608.88/195,418.71 = 77,945.31/x
3. Step 3: Cross multiply
   141,608.88x = 195,418.71 × 77,945.31
4. Step 4: Simplify right side
   141,608.88x = 15,231,971,930.75
5. Step 5: Solve for x
   x = 15,231,971,930.75/141,608.88
6. Step 6: Final answer
   x = 107,563.68