Finding the Fourth Proportional to 443,870.42, 612,578.50 and 271,787.54

Step by Step Solution

1. Step 1: Write the proportion equation
   443,870.42 : 612,578.50 = 271,787.54 : x
2. Step 2: Convert to fraction form
   443,870.42/612,578.50 = 271,787.54/x
3. Step 3: Cross multiply
   443,870.42x = 612,578.50 × 271,787.54
4. Step 4: Simplify right side
   443,870.42x = 166,491,199,829.53
5. Step 5: Solve for x
   x = 166,491,199,829.53/443,870.42
6. Step 6: Final answer
   x = 375,089.65