Finding the Fourth Proportional to 7,698.36, 10,617.69 and 5,574.21

Step by Step Solution

1. Step 1: Write the proportion equation
   7,698.36 : 10,617.69 = 5,574.21 : x
2. Step 2: Convert to fraction form
   7,698.36/10,617.69 = 5,574.21/x
3. Step 3: Cross multiply
   7,698.36x = 10,617.69 × 5,574.21
4. Step 4: Simplify right side
   7,698.36x = 59,185,233.77
5. Step 5: Solve for x
   x = 59,185,233.77/7,698.36
6. Step 6: Final answer
   x = 7,688.03