Finding the Fourth Proportional to 9,372.42, 12,933.54 and 5,180.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.42 : 12,933.54 = 5,180.64 : x
2. Step 2: Convert to fraction form
   9,372.42/12,933.54 = 5,180.64/x
3. Step 3: Cross multiply
   9,372.42x = 12,933.54 × 5,180.64
4. Step 4: Simplify right side
   9,372.42x = 67,004,014.67
5. Step 5: Solve for x
   x = 67,004,014.67/9,372.42
6. Step 6: Final answer
   x = 7,149.06