Finding the Fourth Proportional to 449,271.99, 620,020.59 and 245,341.86

Step by Step Solution

1. Step 1: Write the proportion equation
   449,271.99 : 620,020.59 = 245,341.86 : x
2. Step 2: Convert to fraction form
   449,271.99/620,020.59 = 245,341.86/x
3. Step 3: Cross multiply
   449,271.99x = 620,020.59 × 245,341.86
4. Step 4: Simplify right side
   449,271.99x = 152,117,004,788.90
5. Step 5: Solve for x
   x = 152,117,004,788.90/449,271.99
6. Step 6: Final answer
   x = 338,585.55