Finding the Fourth Proportional to 31,629.89, 47,446.79 and 10,571.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,629.89 : 47,446.79 = 10,571.82 : x
2. Step 2: Convert to fraction form
   31,629.89/47,446.79 = 10,571.82/x
3. Step 3: Cross multiply
   31,629.89x = 47,446.79 × 10,571.82
4. Step 4: Simplify right side
   31,629.89x = 501,598,870.60
5. Step 5: Solve for x
   x = 501,598,870.60/31,629.89
6. Step 6: Final answer
   x = 15,858.38