Finding the Fourth Proportional to 9,372.34, 12,933.72 and 5,180.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,372.34 : 12,933.72 = 5,180.50 : x
2. Step 2: Convert to fraction form
   9,372.34/12,933.72 = 5,180.50/x
3. Step 3: Cross multiply
   9,372.34x = 12,933.72 × 5,180.50
4. Step 4: Simplify right side
   9,372.34x = 67,003,136.46
5. Step 5: Solve for x
   x = 67,003,136.46/9,372.34
6. Step 6: Final answer
   x = 7,149.03