Finding the Fourth Proportional to 12,673.68, 17,490.76 and 7,368.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.68 : 17,490.76 = 7,368.16 : x
2. Step 2: Convert to fraction form
   12,673.68/17,490.76 = 7,368.16/x
3. Step 3: Cross multiply
   12,673.68x = 17,490.76 × 7,368.16
4. Step 4: Simplify right side
   12,673.68x = 128,874,718.20
5. Step 5: Solve for x
   x = 128,874,718.20/12,673.68
6. Step 6: Final answer
   x = 10,168.69