Finding the Fourth Proportional to 12,674.72, 17,490.81 and 7,371.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.72 : 17,490.81 = 7,371.38 : x
2. Step 2: Convert to fraction form
   12,674.72/17,490.81 = 7,371.38/x
3. Step 3: Cross multiply
   12,674.72x = 17,490.81 × 7,371.38
4. Step 4: Simplify right side
   12,674.72x = 128,931,407.02
5. Step 5: Solve for x
   x = 128,931,407.02/12,674.72
6. Step 6: Final answer
   x = 10,172.33