Finding the Fourth Proportional to 9,372.38, 12,933.89 and 5,180.63

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.38 : 12,933.89 = 5,180.63 : x
2. Step 2: Convert to fraction form
   9,372.38/12,933.89 = 5,180.63/x
3. Step 3: Cross multiply
   9,372.38x = 12,933.89 × 5,180.63
4. Step 4: Simplify right side
   9,372.38x = 67,005,646.83
5. Step 5: Solve for x
   x = 67,005,646.83/9,372.38
6. Step 6: Final answer
   x = 7,149.27