Finding the Fourth Proportional to 12,422.34, 18,637.34 and 4,308.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,422.34 : 18,637.34 = 4,308.58 : x
2. Step 2: Convert to fraction form
   12,422.34/18,637.34 = 4,308.58/x
3. Step 3: Cross multiply
   12,422.34x = 18,637.34 × 4,308.58
4. Step 4: Simplify right side
   12,422.34x = 80,300,470.38
5. Step 5: Solve for x
   x = 80,300,470.38/12,422.34
6. Step 6: Final answer
   x = 6,464.20