Finding the Fourth Proportional to 443,853.50, 612,517.83 and 242,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   443,853.50 : 612,517.83 = 242,649.50 : x
2. Step 2: Convert to fraction form
   443,853.50/612,517.83 = 242,649.50/x
3. Step 3: Cross multiply
   443,853.50x = 612,517.83 × 242,649.50
4. Step 4: Simplify right side
   443,853.50x = 148,627,145,190.59
5. Step 5: Solve for x
   x = 148,627,145,190.59/443,853.50
6. Step 6: Final answer
   x = 334,856.31