Finding the Fourth Proportional to 631,510.42, 871,438.89 and 344,969.68

Step by Step Solution

1. Step 1: Write the proportion equation
   631,510.42 : 871,438.89 = 344,969.68 : x
2. Step 2: Convert to fraction form
   631,510.42/871,438.89 = 344,969.68/x
3. Step 3: Cross multiply
   631,510.42x = 871,438.89 × 344,969.68
4. Step 4: Simplify right side
   631,510.42x = 300,619,995,022.86
5. Step 5: Solve for x
   x = 300,619,995,022.86/631,510.42
6. Step 6: Final answer
   x = 476,033.31