Finding the Fourth Proportional to 31,513.50, 47,237.31 and 16,718.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513.50 : 47,237.31 = 16,718.31 : x
2. Step 2: Convert to fraction form
   31,513.50/47,237.31 = 16,718.31/x
3. Step 3: Cross multiply
   31,513.50x = 47,237.31 × 16,718.31
4. Step 4: Simplify right side
   31,513.50x = 789,727,992.15
5. Step 5: Solve for x
   x = 789,727,992.15/31,513.50
6. Step 6: Final answer
   x = 25,059.99