Finding the Fourth Proportional to 12,281.81, 18,425.34 and 3,962.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,281.81 : 18,425.34 = 3,962.30 : x
2. Step 2: Convert to fraction form
   12,281.81/18,425.34 = 3,962.30/x
3. Step 3: Cross multiply
   12,281.81x = 18,425.34 × 3,962.30
4. Step 4: Simplify right side
   12,281.81x = 73,006,632.56
5. Step 5: Solve for x
   x = 73,006,632.56/12,281.81
6. Step 6: Final answer
   x = 5,944.29