Finding the Fourth Proportional to 7,003.54, 9,664.89 and 3,859.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,003.54 : 9,664.89 = 3,859.72 : x
2. Step 2: Convert to fraction form
   7,003.54/9,664.89 = 3,859.72/x
3. Step 3: Cross multiply
   7,003.54x = 9,664.89 × 3,859.72
4. Step 4: Simplify right side
   7,003.54x = 37,303,769.23
5. Step 5: Solve for x
   x = 37,303,769.23/7,003.54
6. Step 6: Final answer
   x = 5,326.42