Finding the Fourth Proportional to 427,576.82, 641,175.69 and 227,859.98

Step by Step Solution

1. Step 1: Write the proportion equation
   427,576.82 : 641,175.69 = 227,859.98 : x
2. Step 2: Convert to fraction form
   427,576.82/641,175.69 = 227,859.98/x
3. Step 3: Cross multiply
   427,576.82x = 641,175.69 × 227,859.98
4. Step 4: Simplify right side
   427,576.82x = 146,098,279,899.89
5. Step 5: Solve for x
   x = 146,098,279,899.89/427,576.82
6. Step 6: Final answer
   x = 341,688.96