Finding the Fourth Proportional to 12,277.79, 18,416.71 and 3,958.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,277.79 : 18,416.71 = 3,958.41 : x
2. Step 2: Convert to fraction form
   12,277.79/18,416.71 = 3,958.41/x
3. Step 3: Cross multiply
   12,277.79x = 18,416.71 × 3,958.41
4. Step 4: Simplify right side
   12,277.79x = 72,900,889.03
5. Step 5: Solve for x
   x = 72,900,889.03/12,277.79
6. Step 6: Final answer
   x = 5,937.63