Finding the Fourth Proportional to 443,061.09, 611,343.65 and 249,438.69

Step by Step Solution

1. Step 1: Write the proportion equation
   443,061.09 : 611,343.65 = 249,438.69 : x
2. Step 2: Convert to fraction form
   443,061.09/611,343.65 = 249,438.69/x
3. Step 3: Cross multiply
   443,061.09x = 611,343.65 × 249,438.69
4. Step 4: Simplify right side
   443,061.09x = 152,492,759,819.42
5. Step 5: Solve for x
   x = 152,492,759,819.42/443,061.09
6. Step 6: Final answer
   x = 344,179.99