Finding the Fourth Proportional to 12,274.56, 18,411.38 and 3,954.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,274.56 : 18,411.38 = 3,954.62 : x
2. Step 2: Convert to fraction form
   12,274.56/18,411.38 = 3,954.62/x
3. Step 3: Cross multiply
   12,274.56x = 18,411.38 × 3,954.62
4. Step 4: Simplify right side
   12,274.56x = 72,810,041.54
5. Step 5: Solve for x
   x = 72,810,041.54/12,274.56
6. Step 6: Final answer
   x = 5,931.78