Finding the Fourth Proportional to 12,272.28, 18,411.38 and 3,953.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,272.28 : 18,411.38 = 3,953.09 : x
2. Step 2: Convert to fraction form
   12,272.28/18,411.38 = 3,953.09/x
3. Step 3: Cross multiply
   12,272.28x = 18,411.38 × 3,953.09
4. Step 4: Simplify right side
   12,272.28x = 72,781,730.34
5. Step 5: Solve for x
   x = 72,781,730.34/12,272.28
6. Step 6: Final answer
   x = 5,930.58