Finding the Fourth Proportional to 9,275.42, 12,797.78 and 5,499.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,275.42 : 12,797.78 = 5,499.47 : x
2. Step 2: Convert to fraction form
   9,275.42/12,797.78 = 5,499.47/x
3. Step 3: Cross multiply
   9,275.42x = 12,797.78 × 5,499.47
4. Step 4: Simplify right side
   9,275.42x = 70,380,915.69
5. Step 5: Solve for x
   x = 70,380,915.69/9,275.42
6. Step 6: Final answer
   x = 7,587.90