Finding the Fourth Proportional to 21,768.14, 30,043.00 and 12,337.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,768.14 : 30,043.00 = 12,337.31 : x
2. Step 2: Convert to fraction form
   21,768.14/30,043.00 = 12,337.31/x
3. Step 3: Cross multiply
   21,768.14x = 30,043.00 × 12,337.31
4. Step 4: Simplify right side
   21,768.14x = 370,649,894.86
5. Step 5: Solve for x
   x = 370,649,894.86/21,768.14
6. Step 6: Final answer
   x = 17,027.17