Finding the Fourth Proportional to 9,288.48, 12,820.56 and 5,749.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.48 : 12,820.56 = 5,749.68 : x
2. Step 2: Convert to fraction form
   9,288.48/12,820.56 = 5,749.68/x
3. Step 3: Cross multiply
   9,288.48x = 12,820.56 × 5,749.68
4. Step 4: Simplify right side
   9,288.48x = 73,714,117.42
5. Step 5: Solve for x
   x = 73,714,117.42/9,288.48
6. Step 6: Final answer
   x = 7,936.08