Finding the Fourth Proportional to 171,345.73, 257,124.89 and 82,608.25

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345.73 : 257,124.89 = 82,608.25 : x
2. Step 2: Convert to fraction form
   171,345.73/257,124.89 = 82,608.25/x
3. Step 3: Cross multiply
   171,345.73x = 257,124.89 × 82,608.25
4. Step 4: Simplify right side
   171,345.73x = 21,240,637,194.34
5. Step 5: Solve for x
   x = 21,240,637,194.34/171,345.73
6. Step 6: Final answer
   x = 123,963.62