Finding the Fourth Proportional to 443,994.45, 612,699.89 and 242,786.13

Step by Step Solution

1. Step 1: Write the proportion equation
   443,994.45 : 612,699.89 = 242,786.13 : x
2. Step 2: Convert to fraction form
   443,994.45/612,699.89 = 242,786.13/x
3. Step 3: Cross multiply
   443,994.45x = 612,699.89 × 242,786.13
4. Step 4: Simplify right side
   443,994.45x = 148,755,035,144.53
5. Step 5: Solve for x
   x = 148,755,035,144.53/443,994.45
6. Step 6: Final answer
   x = 335,038.05