Finding the Fourth Proportional to 322,645.84, 483,967.12 and 82,758.72

Step by Step Solution

1. Step 1: Write the proportion equation
   322,645.84 : 483,967.12 = 82,758.72 : x
2. Step 2: Convert to fraction form
   322,645.84/483,967.12 = 82,758.72/x
3. Step 3: Cross multiply
   322,645.84x = 483,967.12 × 82,758.72
4. Step 4: Simplify right side
   322,645.84x = 40,052,499,373.29
5. Step 5: Solve for x
   x = 40,052,499,373.29/322,645.84
6. Step 6: Final answer
   x = 124,137.66