Finding the Fourth Proportional to 141,612.07, 195,401.79 and 81,171.59

Step by Step Solution

1. Step 1: Write the proportion equation
   141,612.07 : 195,401.79 = 81,171.59 : x
2. Step 2: Convert to fraction form
   141,612.07/195,401.79 = 81,171.59/x
3. Step 3: Cross multiply
   141,612.07x = 195,401.79 × 81,171.59
4. Step 4: Simplify right side
   141,612.07x = 15,861,073,983.15
5. Step 5: Solve for x
   x = 15,861,073,983.15/141,612.07
6. Step 6: Final answer
   x = 112,003.69