Finding the Fourth Proportional to 12,448.75, 18,667.02 and 5,434.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,448.75 : 18,667.02 = 5,434.69 : x
2. Step 2: Convert to fraction form
   12,448.75/18,667.02 = 5,434.69/x
3. Step 3: Cross multiply
   12,448.75x = 18,667.02 × 5,434.69
4. Step 4: Simplify right side
   12,448.75x = 101,449,466.92
5. Step 5: Solve for x
   x = 101,449,466.92/12,448.75
6. Step 6: Final answer
   x = 8,149.37