Finding the Fourth Proportional to 485,561.25, 670,066.83 and 270,714.42

Step by Step Solution

1. Step 1: Write the proportion equation
   485,561.25 : 670,066.83 = 270,714.42 : x
2. Step 2: Convert to fraction form
   485,561.25/670,066.83 = 270,714.42/x
3. Step 3: Cross multiply
   485,561.25x = 670,066.83 × 270,714.42
4. Step 4: Simplify right side
   485,561.25x = 181,396,753,244.69
5. Step 5: Solve for x
   x = 181,396,753,244.69/485,561.25
6. Step 6: Final answer
   x = 373,581.61