Finding the Fourth Proportional to 443,388.06, 611,808.39 and 249,768.09

Step by Step Solution

1. Step 1: Write the proportion equation
   443,388.06 : 611,808.39 = 249,768.09 : x
2. Step 2: Convert to fraction form
   443,388.06/611,808.39 = 249,768.09/x
3. Step 3: Cross multiply
   443,388.06x = 611,808.39 × 249,768.09
4. Step 4: Simplify right side
   443,388.06x = 152,810,213,016.28
5. Step 5: Solve for x
   x = 152,810,213,016.28/443,388.06
6. Step 6: Final answer
   x = 344,642.15