Finding the Fourth Proportional to 31,828.28, 47,726.01 and 13,104.83

Step by Step Solution

1. Step 1: Write the proportion equation
   31,828.28 : 47,726.01 = 13,104.83 : x
2. Step 2: Convert to fraction form
   31,828.28/47,726.01 = 13,104.83/x
3. Step 3: Cross multiply
   31,828.28x = 47,726.01 × 13,104.83
4. Step 4: Simplify right side
   31,828.28x = 625,441,009.00
5. Step 5: Solve for x
   x = 625,441,009.00/31,828.28
6. Step 6: Final answer
   x = 19,650.48