Finding the Fourth Proportional to 12,687.94, 17,507.73 and 7,383.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,687.94 : 17,507.73 = 7,383.52 : x
2. Step 2: Convert to fraction form
   12,687.94/17,507.73 = 7,383.52/x
3. Step 3: Cross multiply
   12,687.94x = 17,507.73 × 7,383.52
4. Step 4: Simplify right side
   12,687.94x = 129,268,674.61
5. Step 5: Solve for x
   x = 129,268,674.61/12,687.94
6. Step 6: Final answer
   x = 10,188.31