Finding the Fourth Proportional to 171,308.27, 256,814.64 and 82,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   171,308.27 : 256,814.64 = 82,439.52 : x
2. Step 2: Convert to fraction form
   171,308.27/256,814.64 = 82,439.52/x
3. Step 3: Cross multiply
   171,308.27x = 256,814.64 × 82,439.52
4. Step 4: Simplify right side
   171,308.27x = 21,171,675,650.57
5. Step 5: Solve for x
   x = 21,171,675,650.57/171,308.27
6. Step 6: Final answer
   x = 123,588.17