Finding the Fourth Proportional to 141,724.89, 195,573.15 and 78,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   141,724.89 : 195,573.15 = 78,061.32 : x
2. Step 2: Convert to fraction form
   141,724.89/195,573.15 = 78,061.32/x
3. Step 3: Cross multiply
   141,724.89x = 195,573.15 × 78,061.32
4. Step 4: Simplify right side
   141,724.89x = 15,266,698,245.56
5. Step 5: Solve for x
   x = 15,266,698,245.56/141,724.89
6. Step 6: Final answer
   x = 107,720.66