Finding the Fourth Proportional to 12,309.53, 16,983.15 and 7,273.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.53 : 16,983.15 = 7,273.90 : x
2. Step 2: Convert to fraction form
   12,309.53/16,983.15 = 7,273.90/x
3. Step 3: Cross multiply
   12,309.53x = 16,983.15 × 7,273.90
4. Step 4: Simplify right side
   12,309.53x = 123,533,649.87
5. Step 5: Solve for x
   x = 123,533,649.87/12,309.53
6. Step 6: Final answer
   x = 10,035.61