Finding the Fourth Proportional to 21,746.96, 30,016.72 and 12,797.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,746.96 : 30,016.72 = 12,797.34 : x
2. Step 2: Convert to fraction form
   21,746.96/30,016.72 = 12,797.34/x
3. Step 3: Cross multiply
   21,746.96x = 30,016.72 × 12,797.34
4. Step 4: Simplify right side
   21,746.96x = 384,134,171.52
5. Step 5: Solve for x
   x = 384,134,171.52/21,746.96
6. Step 6: Final answer
   x = 17,663.81