Finding the Fourth Proportional to 31,828.52, 47,726.38 and 14,283.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,828.52 : 47,726.38 = 14,283.31 : x
2. Step 2: Convert to fraction form
   31,828.52/47,726.38 = 14,283.31/x
3. Step 3: Cross multiply
   31,828.52x = 47,726.38 × 14,283.31
4. Step 4: Simplify right side
   31,828.52x = 681,690,680.72
5. Step 5: Solve for x
   x = 681,690,680.72/31,828.52
6. Step 6: Final answer
   x = 21,417.61