Finding the Fourth Proportional to 31,835.71, 47,687.94 and 18,648.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,835.71 : 47,687.94 = 18,648.10 : x
2. Step 2: Convert to fraction form
   31,835.71/47,687.94 = 18,648.10/x
3. Step 3: Cross multiply
   31,835.71x = 47,687.94 × 18,648.10
4. Step 4: Simplify right side
   31,835.71x = 889,289,354.69
5. Step 5: Solve for x
   x = 889,289,354.69/31,835.71
6. Step 6: Final answer
   x = 27,933.71