Finding the Fourth Proportional to 11,771.71, 17,655.49 and 3,451.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,771.71 : 17,655.49 = 3,451.53 : x
2. Step 2: Convert to fraction form
   11,771.71/17,655.49 = 3,451.53/x
3. Step 3: Cross multiply
   11,771.71x = 17,655.49 × 3,451.53
4. Step 4: Simplify right side
   11,771.71x = 60,938,453.40
5. Step 5: Solve for x
   x = 60,938,453.40/11,771.71
6. Step 6: Final answer
   x = 5,176.69