Finding the Fourth Proportional to 415,289.89, 573,105.41 and 245,522.53

Step by Step Solution

1. Step 1: Write the proportion equation
   415,289.89 : 573,105.41 = 245,522.53 : x
2. Step 2: Convert to fraction form
   415,289.89/573,105.41 = 245,522.53/x
3. Step 3: Cross multiply
   415,289.89x = 573,105.41 × 245,522.53
4. Step 4: Simplify right side
   415,289.89x = 140,710,290,219.89
5. Step 5: Solve for x
   x = 140,710,290,219.89/415,289.89
6. Step 6: Final answer
   x = 338,824.26