Finding the Fourth Proportional to 443,469.10, 611,951.78 and 249,868.58

Step by Step Solution

1. Step 1: Write the proportion equation
   443,469.10 : 611,951.78 = 249,868.58 : x
2. Step 2: Convert to fraction form
   443,469.10/611,951.78 = 249,868.58/x
3. Step 3: Cross multiply
   443,469.10x = 611,951.78 × 249,868.58
4. Step 4: Simplify right side
   443,469.10x = 152,907,522,297.07
5. Step 5: Solve for x
   x = 152,907,522,297.07/443,469.10
6. Step 6: Final answer
   x = 344,798.59