Finding the Fourth Proportional to 496,185.33, 744,077.56 and 192,419.54

Step by Step Solution

1. Step 1: Write the proportion equation
   496,185.33 : 744,077.56 = 192,419.54 : x
2. Step 2: Convert to fraction form
   496,185.33/744,077.56 = 192,419.54/x
3. Step 3: Cross multiply
   496,185.33x = 744,077.56 × 192,419.54
4. Step 4: Simplify right side
   496,185.33x = 143,175,061,819.52
5. Step 5: Solve for x
   x = 143,175,061,819.52/496,185.33
6. Step 6: Final answer
   x = 288,551.58