Finding the Fourth Proportional to 171,423.89, 257,301.69 and 82,739.84

Step by Step Solution

1. Step 1: Write the proportion equation
   171,423.89 : 257,301.69 = 82,739.84 : x
2. Step 2: Convert to fraction form
   171,423.89/257,301.69 = 82,739.84/x
3. Step 3: Cross multiply
   171,423.89x = 257,301.69 × 82,739.84
4. Step 4: Simplify right side
   171,423.89x = 21,289,100,662.33
5. Step 5: Solve for x
   x = 21,289,100,662.33/171,423.89
6. Step 6: Final answer
   x = 124,189.81