Finding the Fourth Proportional to 476,978.74, 658,199.69 and 273,031.27

Step by Step Solution

1. Step 1: Write the proportion equation
   476,978.74 : 658,199.69 = 273,031.27 : x
2. Step 2: Convert to fraction form
   476,978.74/658,199.69 = 273,031.27/x
3. Step 3: Cross multiply
   476,978.74x = 658,199.69 × 273,031.27
4. Step 4: Simplify right side
   476,978.74x = 179,709,096,311.39
5. Step 5: Solve for x
   x = 179,709,096,311.39/476,978.74
6. Step 6: Final answer
   x = 376,765.42