Finding the Fourth Proportional to 6,131.51, 9,189.56 and 3,320.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.51 : 9,189.56 = 3,320.24 : x
2. Step 2: Convert to fraction form
   6,131.51/9,189.56 = 3,320.24/x
3. Step 3: Cross multiply
   6,131.51x = 9,189.56 × 3,320.24
4. Step 4: Simplify right side
   6,131.51x = 30,511,549.40
5. Step 5: Solve for x
   x = 30,511,549.40/6,131.51
6. Step 6: Final answer
   x = 4,976.18