Finding the Fourth Proportional to 171,079.50, 256,726.17 and 82,342.38

Step by Step Solution

1. Step 1: Write the proportion equation
   171,079.50 : 256,726.17 = 82,342.38 : x
2. Step 2: Convert to fraction form
   171,079.50/256,726.17 = 82,342.38/x
3. Step 3: Cross multiply
   171,079.50x = 256,726.17 × 82,342.38
4. Step 4: Simplify right side
   171,079.50x = 21,139,443,846.08
5. Step 5: Solve for x
   x = 21,139,443,846.08/171,079.50
6. Step 6: Final answer
   x = 123,565.03