Finding the Fourth Proportional to 311,853.02, 468,567.81 and 299,241.72

Step by Step Solution

1. Step 1: Write the proportion equation
   311,853.02 : 468,567.81 = 299,241.72 : x
2. Step 2: Convert to fraction form
   311,853.02/468,567.81 = 299,241.72/x
3. Step 3: Cross multiply
   311,853.02x = 468,567.81 × 299,241.72
4. Step 4: Simplify right side
   311,853.02x = 140,215,037,401.03
5. Step 5: Solve for x
   x = 140,215,037,401.03/311,853.02
6. Step 6: Final answer
   x = 449,618.99