Finding the Fourth Proportional to 443,996.82, 612,703.17 and 242,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,996.82 : 612,703.17 = 242,788.50 : x
2. Step 2: Convert to fraction form
   443,996.82/612,703.17 = 242,788.50/x
3. Step 3: Cross multiply
   443,996.82x = 612,703.17 × 242,788.50
4. Step 4: Simplify right side
   443,996.82x = 148,757,283,589.55
5. Step 5: Solve for x
   x = 148,757,283,589.55/443,996.82
6. Step 6: Final answer
   x = 335,041.33