Finding the Fourth Proportional to 12,983.28, 17,914.32 and 7,676.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983.28 : 17,914.32 = 7,676.16 : x
2. Step 2: Convert to fraction form
   12,983.28/17,914.32 = 7,676.16/x
3. Step 3: Cross multiply
   12,983.28x = 17,914.32 × 7,676.16
4. Step 4: Simplify right side
   12,983.28x = 137,513,186.61
5. Step 5: Solve for x
   x = 137,513,186.61/12,983.28
6. Step 6: Final answer
   x = 10,591.56