Finding the Fourth Proportional to 322,643.84, 483,964.12 and 82,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   322,643.84 : 483,964.12 = 82,756.72 : x
2. Step 2: Convert to fraction form
   322,643.84/483,964.12 = 82,756.72/x
3. Step 3: Cross multiply
   322,643.84x = 483,964.12 × 82,756.72
4. Step 4: Simplify right side
   322,643.84x = 40,051,283,168.89
5. Step 5: Solve for x
   x = 40,051,283,168.89/322,643.84
6. Step 6: Final answer
   x = 124,134.66