Finding the Fourth Proportional to 31,318.52, 43,220.59 and 17,171.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,318.52 : 43,220.59 = 17,171.37 : x
2. Step 2: Convert to fraction form
   31,318.52/43,220.59 = 17,171.37/x
3. Step 3: Cross multiply
   31,318.52x = 43,220.59 × 17,171.37
4. Step 4: Simplify right side
   31,318.52x = 742,156,578.02
5. Step 5: Solve for x
   x = 742,156,578.02/31,318.52
6. Step 6: Final answer
   x = 23,697.05