Finding the Fourth Proportional to 443,388.81, 611,809.43 and 249,768.84

Step by Step Solution

1. Step 1: Write the proportion equation
   443,388.81 : 611,809.43 = 249,768.84 : x
2. Step 2: Convert to fraction form
   443,388.81/611,809.43 = 249,768.84/x
3. Step 3: Cross multiply
   443,388.81x = 611,809.43 × 249,768.84
4. Step 4: Simplify right side
   443,388.81x = 152,810,930,383.32
5. Step 5: Solve for x
   x = 152,810,930,383.32/443,388.81
6. Step 6: Final answer
   x = 344,643.18