Finding the Fourth Proportional to 12,977.16, 17,908.92 and 7,676.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,977.16 : 17,908.92 = 7,676.52 : x
2. Step 2: Convert to fraction form
   12,977.16/17,908.92 = 7,676.52/x
3. Step 3: Cross multiply
   12,977.16x = 17,908.92 × 7,676.52
4. Step 4: Simplify right side
   12,977.16x = 137,478,182.56
5. Step 5: Solve for x
   x = 137,478,182.56/12,977.16
6. Step 6: Final answer
   x = 10,593.86