Finding the Fourth Proportional to 12,276.16, 18,414.27 and 3,956.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,276.16 : 18,414.27 = 3,956.78 : x
2. Step 2: Convert to fraction form
   12,276.16/18,414.27 = 3,956.78/x
3. Step 3: Cross multiply
   12,276.16x = 18,414.27 × 3,956.78
4. Step 4: Simplify right side
   12,276.16x = 72,861,261.29
5. Step 5: Solve for x
   x = 72,861,261.29/12,276.16
6. Step 6: Final answer
   x = 5,935.18