Finding the Fourth Proportional to 12,434.28, 18,647.70 and 3,667.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,434.28 : 18,647.70 = 3,667.08 : x
2. Step 2: Convert to fraction form
   12,434.28/18,647.70 = 3,667.08/x
3. Step 3: Cross multiply
   12,434.28x = 18,647.70 × 3,667.08
4. Step 4: Simplify right side
   12,434.28x = 68,382,607.72
5. Step 5: Solve for x
   x = 68,382,607.72/12,434.28
6. Step 6: Final answer
   x = 5,499.52