Finding the Fourth Proportional to 9,308.40, 12,846.24 and 5,772.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.40 : 12,846.24 = 5,772.75 : x
2. Step 2: Convert to fraction form
   9,308.40/12,846.24 = 5,772.75/x
3. Step 3: Cross multiply
   9,308.40x = 12,846.24 × 5,772.75
4. Step 4: Simplify right side
   9,308.40x = 74,158,131.96
5. Step 5: Solve for x
   x = 74,158,131.96/9,308.40
6. Step 6: Final answer
   x = 7,966.80