Finding the Fourth Proportional to 9,369.52, 12,929.43 and 5,177.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,369.52 : 12,929.43 = 5,177.50 : x
2. Step 2: Convert to fraction form
   9,369.52/12,929.43 = 5,177.50/x
3. Step 3: Cross multiply
   9,369.52x = 12,929.43 × 5,177.50
4. Step 4: Simplify right side
   9,369.52x = 66,942,123.83
5. Step 5: Solve for x
   x = 66,942,123.83/9,369.52
6. Step 6: Final answer
   x = 7,144.67