Finding the Fourth Proportional to 359,456.25, 494,883.59 and 282,840.33

Step by Step Solution

1. Step 1: Write the proportion equation
   359,456.25 : 494,883.59 = 282,840.33 : x
2. Step 2: Convert to fraction form
   359,456.25/494,883.59 = 282,840.33/x
3. Step 3: Cross multiply
   359,456.25x = 494,883.59 × 282,840.33
4. Step 4: Simplify right side
   359,456.25x = 139,973,036,492.98
5. Step 5: Solve for x
   x = 139,973,036,492.98/359,456.25
6. Step 6: Final answer
   x = 389,402.15