Finding the Fourth Proportional to 21,764.22, 30,041.46 and 12,339.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,764.22 : 30,041.46 = 12,339.06 : x
2. Step 2: Convert to fraction form
   21,764.22/30,041.46 = 12,339.06/x
3. Step 3: Cross multiply
   21,764.22x = 30,041.46 × 12,339.06
4. Step 4: Simplify right side
   21,764.22x = 370,683,377.43
5. Step 5: Solve for x
   x = 370,683,377.43/21,764.22
6. Step 6: Final answer
   x = 17,031.78