Finding the Fourth Proportional to 259,556.32, 389,332.18 and 82,063.45

Step by Step Solution

1. Step 1: Write the proportion equation
   259,556.32 : 389,332.18 = 82,063.45 : x
2. Step 2: Convert to fraction form
   259,556.32/389,332.18 = 82,063.45/x
3. Step 3: Cross multiply
   259,556.32x = 389,332.18 × 82,063.45
4. Step 4: Simplify right side
   259,556.32x = 31,949,941,886.82
5. Step 5: Solve for x
   x = 31,949,941,886.82/259,556.32
6. Step 6: Final answer
   x = 123,094.45