Finding the Fourth Proportional to 949,066.27, 1,423,747.89 and 309,221.51

Step by Step Solution

1. Step 1: Write the proportion equation
   949,066.27 : 1,423,747.89 = 309,221.51 : x
2. Step 2: Convert to fraction form
   949,066.27/1,423,747.89 = 309,221.51/x
3. Step 3: Cross multiply
   949,066.27x = 1,423,747.89 × 309,221.51
4. Step 4: Simplify right side
   949,066.27x = 440,253,465,286.37
5. Step 5: Solve for x
   x = 440,253,465,286.37/949,066.27
6. Step 6: Final answer
   x = 463,880.64