Finding the Fourth Proportional to 6,659.52, 9,990.72 and 3,739.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,659.52 : 9,990.72 = 3,739.52 : x
2. Step 2: Convert to fraction form
   6,659.52/9,990.72 = 3,739.52/x
3. Step 3: Cross multiply
   6,659.52x = 9,990.72 × 3,739.52
4. Step 4: Simplify right side
   6,659.52x = 37,360,497.25
5. Step 5: Solve for x
   x = 37,360,497.25/6,659.52
6. Step 6: Final answer
   x = 5,610.09