Finding the Fourth Proportional to 443,066.99, 611,351.78 and 249,444.59

Step by Step Solution

1. Step 1: Write the proportion equation
   443,066.99 : 611,351.78 = 249,444.59 : x
2. Step 2: Convert to fraction form
   443,066.99/611,351.78 = 249,444.59/x
3. Step 3: Cross multiply
   443,066.99x = 611,351.78 × 249,444.59
4. Step 4: Simplify right side
   443,066.99x = 152,498,389,803.89
5. Step 5: Solve for x
   x = 152,498,389,803.89/443,066.99
6. Step 6: Final answer
   x = 344,188.11