Finding the Fourth Proportional to 259,760.93, 389,638.69 and 82,267.92

Step by Step Solution

1. Step 1: Write the proportion equation
   259,760.93 : 389,638.69 = 82,267.92 : x
2. Step 2: Convert to fraction form
   259,760.93/389,638.69 = 82,267.92/x
3. Step 3: Cross multiply
   259,760.93x = 389,638.69 × 82,267.92
4. Step 4: Simplify right side
   259,760.93x = 32,054,763,075.43
5. Step 5: Solve for x
   x = 32,054,763,075.43/259,760.93
6. Step 6: Final answer
   x = 123,401.02