Finding the Fourth Proportional to 13,071.69, 19,608.71 and 3,711.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.69 : 19,608.71 = 3,711.80 : x
2. Step 2: Convert to fraction form
   13,071.69/19,608.71 = 3,711.80/x
3. Step 3: Cross multiply
   13,071.69x = 19,608.71 × 3,711.80
4. Step 4: Simplify right side
   13,071.69x = 72,783,609.78
5. Step 5: Solve for x
   x = 72,783,609.78/13,071.69
6. Step 6: Final answer
   x = 5,568.03