Finding the Fourth Proportional to 171,563.67, 257,353.71 and 82,891.75

Step by Step Solution

1. Step 1: Write the proportion equation
   171,563.67 : 257,353.71 = 82,891.75 : x
2. Step 2: Convert to fraction form
   171,563.67/257,353.71 = 82,891.75/x
3. Step 3: Cross multiply
   171,563.67x = 257,353.71 × 82,891.75
4. Step 4: Simplify right side
   171,563.67x = 21,332,499,390.89
5. Step 5: Solve for x
   x = 21,332,499,390.89/171,563.67
6. Step 6: Final answer
   x = 124,341.59