Finding the Fourth Proportional to 141,715.20, 195,580.86 and 105,843

Step by Step Solution

1. Step 1: Write the proportion equation
   141,715.20 : 195,580.86 = 105,843 : x
2. Step 2: Convert to fraction form
   141,715.20/195,580.86 = 105,843/x
3. Step 3: Cross multiply
   141,715.20x = 195,580.86 × 105,843
4. Step 4: Simplify right side
   141,715.20x = 20,700,864,964.98
5. Step 5: Solve for x
   x = 20,700,864,964.98/141,715.20
6. Step 6: Final answer
   x = 146,073.71