Finding the Fourth Proportional to 487,738.89, 673,105.83 and 272,866.14

Step by Step Solution

1. Step 1: Write the proportion equation
   487,738.89 : 673,105.83 = 272,866.14 : x
2. Step 2: Convert to fraction form
   487,738.89/673,105.83 = 272,866.14/x
3. Step 3: Cross multiply
   487,738.89x = 673,105.83 × 272,866.14
4. Step 4: Simplify right side
   487,738.89x = 183,667,789,643.60
5. Step 5: Solve for x
   x = 183,667,789,643.60/487,738.89
6. Step 6: Final answer
   x = 376,569.91