Finding the Fourth Proportional to 22,303.22, 30,776.21 and 12,874.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,303.22 : 30,776.21 = 12,874.82 : x
2. Step 2: Convert to fraction form
   22,303.22/30,776.21 = 12,874.82/x
3. Step 3: Cross multiply
   22,303.22x = 30,776.21 × 12,874.82
4. Step 4: Simplify right side
   22,303.22x = 396,237,945.78
5. Step 5: Solve for x
   x = 396,237,945.78/22,303.22
6. Step 6: Final answer
   x = 17,765.96