Finding the Fourth Proportional to 443,061.59, 611,344.34 and 249,439.19

Step by Step Solution

1. Step 1: Write the proportion equation
   443,061.59 : 611,344.34 = 249,439.19 : x
2. Step 2: Convert to fraction form
   443,061.59/611,344.34 = 249,439.19/x
3. Step 3: Cross multiply
   443,061.59x = 611,344.34 × 249,439.19
4. Step 4: Simplify right side
   443,061.59x = 152,493,237,604.28
5. Step 5: Solve for x
   x = 152,493,237,604.28/443,061.59
6. Step 6: Final answer
   x = 344,180.68