Finding the Fourth Proportional to 141,733.20, 195,591.78 and 78,071

Step by Step Solution

1. Step 1: Write the proportion equation
   141,733.20 : 195,591.78 = 78,071 : x
2. Step 2: Convert to fraction form
   141,733.20/195,591.78 = 78,071/x
3. Step 3: Cross multiply
   141,733.20x = 195,591.78 × 78,071
4. Step 4: Simplify right side
   141,733.20x = 15,270,045,856.38
5. Step 5: Solve for x
   x = 15,270,045,856.38/141,733.20
6. Step 6: Final answer
   x = 107,737.96