Finding the Fourth Proportional to 20,976.37, 31,607.98 and 17,358.37

Step by Step Solution

1. Step 1: Write the proportion equation
   20,976.37 : 31,607.98 = 17,358.37 : x
2. Step 2: Convert to fraction form
   20,976.37/31,607.98 = 17,358.37/x
3. Step 3: Cross multiply
   20,976.37x = 31,607.98 × 17,358.37
4. Step 4: Simplify right side
   20,976.37x = 548,663,011.79
5. Step 5: Solve for x
   x = 548,663,011.79/20,976.37
6. Step 6: Final answer
   x = 26,156.24