Finding the Fourth Proportional to 141,681.75, 195,520.83 and 78,019.41

Step by Step Solution

1. Step 1: Write the proportion equation
   141,681.75 : 195,520.83 = 78,019.41 : x
2. Step 2: Convert to fraction form
   141,681.75/195,520.83 = 78,019.41/x
3. Step 3: Cross multiply
   141,681.75x = 195,520.83 × 78,019.41
4. Step 4: Simplify right side
   141,681.75x = 15,254,419,799.31
5. Step 5: Solve for x
   x = 15,254,419,799.31/141,681.75
6. Step 6: Final answer
   x = 107,666.79