Finding the Fourth Proportional to 12,673.80, 17,494.20 and 7,370.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.80 : 17,494.20 = 7,370.28 : x
2. Step 2: Convert to fraction form
   12,673.80/17,494.20 = 7,370.28/x
3. Step 3: Cross multiply
   12,673.80x = 17,494.20 × 7,370.28
4. Step 4: Simplify right side
   12,673.80x = 128,937,152.38
5. Step 5: Solve for x
   x = 128,937,152.38/12,673.80
6. Step 6: Final answer
   x = 10,173.52