Finding the Fourth Proportional to 171,080.50, 256,727.67 and 82,343.38

Step by Step Solution

1. Step 1: Write the proportion equation
   171,080.50 : 256,727.67 = 82,343.38 : x
2. Step 2: Convert to fraction form
   171,080.50/256,727.67 = 82,343.38/x
3. Step 3: Cross multiply
   171,080.50x = 256,727.67 × 82,343.38
4. Step 4: Simplify right side
   171,080.50x = 21,139,824,087.32
5. Step 5: Solve for x
   x = 21,139,824,087.32/171,080.50
6. Step 6: Final answer
   x = 123,566.53