Finding the Fourth Proportional to 141,306.31, 194,954.49 and 87,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   141,306.31 : 194,954.49 = 87,571.72 : x
2. Step 2: Convert to fraction form
   141,306.31/194,954.49 = 87,571.72/x
3. Step 3: Cross multiply
   141,306.31x = 194,954.49 × 87,571.72
4. Step 4: Simplify right side
   141,306.31x = 17,072,500,011.02
5. Step 5: Solve for x
   x = 17,072,500,011.02/141,306.31
6. Step 6: Final answer
   x = 120,819.09