Finding the Fourth Proportional to 8,327.79, 12,495.74 and 3,940.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,327.79 : 12,495.74 = 3,940.02 : x
2. Step 2: Convert to fraction form
   8,327.79/12,495.74 = 3,940.02/x
3. Step 3: Cross multiply
   8,327.79x = 12,495.74 × 3,940.02
4. Step 4: Simplify right side
   8,327.79x = 49,233,445.81
5. Step 5: Solve for x
   x = 49,233,445.81/8,327.79
6. Step 6: Final answer
   x = 5,911.95