Finding the Fourth Proportional to 320,839.82, 481,093.58 and 171,039.86

Step by Step Solution

1. Step 1: Write the proportion equation
   320,839.82 : 481,093.58 = 171,039.86 : x
2. Step 2: Convert to fraction form
   320,839.82/481,093.58 = 171,039.86/x
3. Step 3: Cross multiply
   320,839.82x = 481,093.58 × 171,039.86
4. Step 4: Simplify right side
   320,839.82x = 82,286,178,570.10
5. Step 5: Solve for x
   x = 82,286,178,570.10/320,839.82
6. Step 6: Final answer
   x = 256,471.22