Finding the Fourth Proportional to 331,789, 497,685.32 and 82,471

Step by Step Solution

1. Step 1: Write the proportion equation
   331,789 : 497,685.32 = 82,471 : x
2. Step 2: Convert to fraction form
   331,789/497,685.32 = 82,471/x
3. Step 3: Cross multiply
   331,789x = 497,685.32 × 82,471
4. Step 4: Simplify right side
   331,789x = 41,044,606,025.72
5. Step 5: Solve for x
   x = 41,044,606,025.72/331,789
6. Step 6: Final answer
   x = 123,706.95