Finding the Fourth Proportional to 12,674.02, 17,490.72 and 7,085.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,674.02 : 17,490.72 = 7,085.02 : x
2. Step 2: Convert to fraction form
   12,674.02/17,490.72 = 7,085.02/x
3. Step 3: Cross multiply
   12,674.02x = 17,490.72 × 7,085.02
4. Step 4: Simplify right side
   12,674.02x = 123,922,101.01
5. Step 5: Solve for x
   x = 123,922,101.01/12,674.02
6. Step 6: Final answer
   x = 9,777.65