Finding the Fourth Proportional to 31,970.69, 47,969.85 and 17,162.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,970.69 : 47,969.85 = 17,162.31 : x
2. Step 2: Convert to fraction form
   31,970.69/47,969.85 = 17,162.31/x
3. Step 3: Cross multiply
   31,970.69x = 47,969.85 × 17,162.31
4. Step 4: Simplify right side
   31,970.69x = 823,273,680.60
5. Step 5: Solve for x
   x = 823,273,680.60/31,970.69
6. Step 6: Final answer
   x = 25,750.89