Finding the Fourth Proportional to 259,664.52, 389,536.14 and 82,112.52

Step by Step Solution

1. Step 1: Write the proportion equation
   259,664.52 : 389,536.14 = 82,112.52 : x
2. Step 2: Convert to fraction form
   259,664.52/389,536.14 = 82,112.52/x
3. Step 3: Cross multiply
   259,664.52x = 389,536.14 × 82,112.52
4. Step 4: Simplify right side
   259,664.52x = 31,985,794,086.47
5. Step 5: Solve for x
   x = 31,985,794,086.47/259,664.52
6. Step 6: Final answer
   x = 123,181.23