Finding the Fourth Proportional to 631,778.25, 871,852.37 and 345,300.29

Step by Step Solution

1. Step 1: Write the proportion equation
   631,778.25 : 871,852.37 = 345,300.29 : x
2. Step 2: Convert to fraction form
   631,778.25/871,852.37 = 345,300.29/x
3. Step 3: Cross multiply
   631,778.25x = 871,852.37 × 345,300.29
4. Step 4: Simplify right side
   631,778.25x = 301,050,870,112.42
5. Step 5: Solve for x
   x = 301,050,870,112.42/631,778.25
6. Step 6: Final answer
   x = 476,513.51