Finding the Fourth Proportional to 9,483.12, 13,080.61 and 5,757.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,483.12 : 13,080.61 = 5,757.12 : x
2. Step 2: Convert to fraction form
   9,483.12/13,080.61 = 5,757.12/x
3. Step 3: Cross multiply
   9,483.12x = 13,080.61 × 5,757.12
4. Step 4: Simplify right side
   9,483.12x = 75,306,641.44
5. Step 5: Solve for x
   x = 75,306,641.44/9,483.12
6. Step 6: Final answer
   x = 7,941.13