Finding the Fourth Proportional to 449,264.82, 620,010.72 and 245,334.72

Step by Step Solution

1. Step 1: Write the proportion equation
   449,264.82 : 620,010.72 = 245,334.72 : x
2. Step 2: Convert to fraction form
   449,264.82/620,010.72 = 245,334.72/x
3. Step 3: Cross multiply
   449,264.82x = 620,010.72 × 245,334.72
4. Step 4: Simplify right side
   449,264.82x = 152,110,156,388.20
5. Step 5: Solve for x
   x = 152,110,156,388.20/449,264.82
6. Step 6: Final answer
   x = 338,575.71