Finding the Fourth Proportional to 9,481.12, 13,080.72 and 5,754.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,481.12 : 13,080.72 = 5,754.40 : x
2. Step 2: Convert to fraction form
   9,481.12/13,080.72 = 5,754.40/x
3. Step 3: Cross multiply
   9,481.12x = 13,080.72 × 5,754.40
4. Step 4: Simplify right side
   9,481.12x = 75,271,695.17
5. Step 5: Solve for x
   x = 75,271,695.17/9,481.12
6. Step 6: Final answer
   x = 7,939.11