Finding the Fourth Proportional to 21,746.27, 30,009.34 and 12,794.35

Step by Step Solution

1. Step 1: Write the proportion equation
   21,746.27 : 30,009.34 = 12,794.35 : x
2. Step 2: Convert to fraction form
   21,746.27/30,009.34 = 12,794.35/x
3. Step 3: Cross multiply
   21,746.27x = 30,009.34 × 12,794.35
4. Step 4: Simplify right side
   21,746.27x = 383,949,999.23
5. Step 5: Solve for x
   x = 383,949,999.23/21,746.27
6. Step 6: Final answer
   x = 17,655.90