Finding the Fourth Proportional to 12,227.51, 18,342.29 and 3,908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,227.51 : 18,342.29 = 3,908.72 : x
2. Step 2: Convert to fraction form
   12,227.51/18,342.29 = 3,908.72/x
3. Step 3: Cross multiply
   12,227.51x = 18,342.29 × 3,908.72
4. Step 4: Simplify right side
   12,227.51x = 71,694,931.40
5. Step 5: Solve for x
   x = 71,694,931.40/12,227.51
6. Step 6: Final answer
   x = 5,863.41