Finding the Fourth Proportional to 31,648.47, 47,431.17 and 23,289.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,648.47 : 47,431.17 = 23,289.34 : x
2. Step 2: Convert to fraction form
   31,648.47/47,431.17 = 23,289.34/x
3. Step 3: Cross multiply
   31,648.47x = 47,431.17 × 23,289.34
4. Step 4: Simplify right side
   31,648.47x = 1,104,640,644.73
5. Step 5: Solve for x
   x = 1,104,640,644.73/31,648.47
6. Step 6: Final answer
   x = 34,903.45