Finding the Fourth Proportional to 12,271.23, 18,406.53 and 3,951.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,271.23 : 18,406.53 = 3,951.81 : x
2. Step 2: Convert to fraction form
   12,271.23/18,406.53 = 3,951.81/x
3. Step 3: Cross multiply
   12,271.23x = 18,406.53 × 3,951.81
4. Step 4: Simplify right side
   12,271.23x = 72,739,109.32
5. Step 5: Solve for x
   x = 72,739,109.32/12,271.23
6. Step 6: Final answer
   x = 5,927.61