Finding the Fourth Proportional to 9,371.96, 12,933.90 and 5,180.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,371.96 : 12,933.90 = 5,180.60 : x
2. Step 2: Convert to fraction form
   9,371.96/12,933.90 = 5,180.60/x
3. Step 3: Cross multiply
   9,371.96x = 12,933.90 × 5,180.60
4. Step 4: Simplify right side
   9,371.96x = 67,005,362.34
5. Step 5: Solve for x
   x = 67,005,362.34/9,371.96
6. Step 6: Final answer
   x = 7,149.56