Finding the Fourth Proportional to 23,217.21, 34,804.38 and 8,422.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,217.21 : 34,804.38 = 8,422.56 : x
2. Step 2: Convert to fraction form
   23,217.21/34,804.38 = 8,422.56/x
3. Step 3: Cross multiply
   23,217.21x = 34,804.38 × 8,422.56
4. Step 4: Simplify right side
   23,217.21x = 293,141,978.81
5. Step 5: Solve for x
   x = 293,141,978.81/23,217.21
6. Step 6: Final answer
   x = 12,626.06