Finding the Fourth Proportional to 31,789.25, 47,692.89 and 25,921.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789.25 : 47,692.89 = 25,921.62 : x
2. Step 2: Convert to fraction form
   31,789.25/47,692.89 = 25,921.62/x
3. Step 3: Cross multiply
   31,789.25x = 47,692.89 × 25,921.62
4. Step 4: Simplify right side
   31,789.25x = 1,236,276,971.28
5. Step 5: Solve for x
   x = 1,236,276,971.28/31,789.25
6. Step 6: Final answer
   x = 38,889.79