Finding the Fourth Proportional to 12,145.26, 16,756.83 and 7,424.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,145.26 : 16,756.83 = 7,424.58 : x
2. Step 2: Convert to fraction form
   12,145.26/16,756.83 = 7,424.58/x
3. Step 3: Cross multiply
   12,145.26x = 16,756.83 × 7,424.58
4. Step 4: Simplify right side
   12,145.26x = 124,412,424.88
5. Step 5: Solve for x
   x = 124,412,424.88/12,145.26
6. Step 6: Final answer
   x = 10,243.70