Finding the Fourth Proportional to 12,682.08, 18,995.42 and 7,736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.08 : 18,995.42 = 7,736.72 : x
2. Step 2: Convert to fraction form
   12,682.08/18,995.42 = 7,736.72/x
3. Step 3: Cross multiply
   12,682.08x = 18,995.42 × 7,736.72
4. Step 4: Simplify right side
   12,682.08x = 146,962,245.82
5. Step 5: Solve for x
   x = 146,962,245.82/12,682.08
6. Step 6: Final answer
   x = 11,588.18