Finding the Fourth Proportional to 5,097.21, 7,627.59 and 3,993.99

Step by Step Solution

1. Step 1: Write the proportion equation
   5,097.21 : 7,627.59 = 3,993.99 : x
2. Step 2: Convert to fraction form
   5,097.21/7,627.59 = 3,993.99/x
3. Step 3: Cross multiply
   5,097.21x = 7,627.59 × 3,993.99
4. Step 4: Simplify right side
   5,097.21x = 30,464,518.18
5. Step 5: Solve for x
   x = 30,464,518.18/5,097.21
6. Step 6: Final answer
   x = 5,976.70