Finding the Fourth Proportional to 141,711, 195,561.45 and 78,054.72

Step by Step Solution

1. Step 1: Write the proportion equation
   141,711 : 195,561.45 = 78,054.72 : x
2. Step 2: Convert to fraction form
   141,711/195,561.45 = 78,054.72/x
3. Step 3: Cross multiply
   141,711x = 195,561.45 × 78,054.72
4. Step 4: Simplify right side
   141,711x = 15,264,494,222.54
5. Step 5: Solve for x
   x = 15,264,494,222.54/141,711
6. Step 6: Final answer
   x = 107,715.66