Finding the Fourth Proportional to 493,759.98, 681,200.91 and 365,007.57

Step by Step Solution

1. Step 1: Write the proportion equation
   493,759.98 : 681,200.91 = 365,007.57 : x
2. Step 2: Convert to fraction form
   493,759.98/681,200.91 = 365,007.57/x
3. Step 3: Cross multiply
   493,759.98x = 681,200.91 × 365,007.57
4. Step 4: Simplify right side
   493,759.98x = 248,643,488,840.89
5. Step 5: Solve for x
   x = 248,643,488,840.89/493,759.98
6. Step 6: Final answer
   x = 503,571.57