Finding the Fourth Proportional to 141,709.78, 195,550.61 and 78,047.58

Step by Step Solution

1. Step 1: Write the proportion equation
   141,709.78 : 195,550.61 = 78,047.58 : x
2. Step 2: Convert to fraction form
   141,709.78/195,550.61 = 78,047.58/x
3. Step 3: Cross multiply
   141,709.78x = 195,550.61 × 78,047.58
4. Step 4: Simplify right side
   141,709.78x = 15,262,250,571.14
5. Step 5: Solve for x
   x = 15,262,250,571.14/141,709.78
6. Step 6: Final answer
   x = 107,700.76