Finding the Fourth Proportional to 443,459.42, 611,973.59 and 239,510.33

Step by Step Solution

1. Step 1: Write the proportion equation
   443,459.42 : 611,973.59 = 239,510.33 : x
2. Step 2: Convert to fraction form
   443,459.42/611,973.59 = 239,510.33/x
3. Step 3: Cross multiply
   443,459.42x = 611,973.59 × 239,510.33
4. Step 4: Simplify right side
   443,459.42x = 146,573,992,234.77
5. Step 5: Solve for x
   x = 146,573,992,234.77/443,459.42
6. Step 6: Final answer
   x = 330,524.03