Finding the Fourth Proportional to 5,611.47, 7,744.88 and 3,719.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,611.47 : 7,744.88 = 3,719.71 : x
2. Step 2: Convert to fraction form
   5,611.47/7,744.88 = 3,719.71/x
3. Step 3: Cross multiply
   5,611.47x = 7,744.88 × 3,719.71
4. Step 4: Simplify right side
   5,611.47x = 28,808,707.58
5. Step 5: Solve for x
   x = 28,808,707.58/5,611.47
6. Step 6: Final answer
   x = 5,133.90