Finding the Fourth Proportional to 13,469.46, 18,587.67 and 7,419.59

Step by Step Solution

1. Step 1: Write the proportion equation
   13,469.46 : 18,587.67 = 7,419.59 : x
2. Step 2: Convert to fraction form
   13,469.46/18,587.67 = 7,419.59/x
3. Step 3: Cross multiply
   13,469.46x = 18,587.67 × 7,419.59
4. Step 4: Simplify right side
   13,469.46x = 137,912,797.52
5. Step 5: Solve for x
   x = 137,912,797.52/13,469.46
6. Step 6: Final answer
   x = 10,238.93