Finding the Fourth Proportional to 12,453.91, 18,680.83 and 4,134.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,453.91 : 18,680.83 = 4,134.56 : x
2. Step 2: Convert to fraction form
   12,453.91/18,680.83 = 4,134.56/x
3. Step 3: Cross multiply
   12,453.91x = 18,680.83 × 4,134.56
4. Step 4: Simplify right side
   12,453.91x = 77,236,965.78
5. Step 5: Solve for x
   x = 77,236,965.78/12,453.91
6. Step 6: Final answer
   x = 6,201.82