Finding the Fourth Proportional to 483,780.72, 725,736.78 and 168,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   483,780.72 : 725,736.78 = 168,196.80 : x
2. Step 2: Convert to fraction form
   483,780.72/725,736.78 = 168,196.80/x
3. Step 3: Cross multiply
   483,780.72x = 725,736.78 × 168,196.80
4. Step 4: Simplify right side
   483,780.72x = 122,066,604,038.30
5. Step 5: Solve for x
   x = 122,066,604,038.30/483,780.72
6. Step 6: Final answer
   x = 252,318.04