Finding the Fourth Proportional to 9,369.27, 12,928.68 and 5,177.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,369.27 : 12,928.68 = 5,177.52 : x
2. Step 2: Convert to fraction form
   9,369.27/12,928.68 = 5,177.52/x
3. Step 3: Cross multiply
   9,369.27x = 12,928.68 × 5,177.52
4. Step 4: Simplify right side
   9,369.27x = 66,938,499.27
5. Step 5: Solve for x
   x = 66,938,499.27/9,369.27
6. Step 6: Final answer
   x = 7,144.47