Finding the Fourth Proportional to 12,673.48, 17,490.90 and 7,083.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.48 : 17,490.90 = 7,083.40 : x
2. Step 2: Convert to fraction form
   12,673.48/17,490.90 = 7,083.40/x
3. Step 3: Cross multiply
   12,673.48x = 17,490.90 × 7,083.40
4. Step 4: Simplify right side
   12,673.48x = 123,895,041.06
5. Step 5: Solve for x
   x = 123,895,041.06/12,673.48
6. Step 6: Final answer
   x = 9,775.93