Finding the Fourth Proportional to 12,673.40, 17,488.04 and 7,368.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.40 : 17,488.04 = 7,368.57 : x
2. Step 2: Convert to fraction form
   12,673.40/17,488.04 = 7,368.57/x
3. Step 3: Cross multiply
   12,673.40x = 17,488.04 × 7,368.57
4. Step 4: Simplify right side
   12,673.40x = 128,861,810.06
5. Step 5: Solve for x
   x = 128,861,810.06/12,673.40
6. Step 6: Final answer
   x = 10,167.90