Finding the Fourth Proportional to 10,672.57, 15,995.90 and 7,553.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,672.57 : 15,995.90 = 7,553.49 : x
2. Step 2: Convert to fraction form
   10,672.57/15,995.90 = 7,553.49/x
3. Step 3: Cross multiply
   10,672.57x = 15,995.90 × 7,553.49
4. Step 4: Simplify right side
   10,672.57x = 120,824,870.69
5. Step 5: Solve for x
   x = 120,824,870.69/10,672.57
6. Step 6: Final answer
   x = 11,321.07