Finding the Fourth Proportional to 498,383.00, 687,768.54 and 272,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   498,383.00 : 687,768.54 = 272,028.50 : x
2. Step 2: Convert to fraction form
   498,383.00/687,768.54 = 272,028.50/x
3. Step 3: Cross multiply
   498,383.00x = 687,768.54 × 272,028.50
4. Step 4: Simplify right side
   498,383.00x = 187,092,640,844.55
5. Step 5: Solve for x
   x = 187,092,640,844.55/498,383.00
6. Step 6: Final answer
   x = 375,399.33