Finding the Fourth Proportional to 18,667.83, 25,726.15 and 13,353.42

Step by Step Solution

1. Step 1: Write the proportion equation
   18,667.83 : 25,726.15 = 13,353.42 : x
2. Step 2: Convert to fraction form
   18,667.83/25,726.15 = 13,353.42/x
3. Step 3: Cross multiply
   18,667.83x = 25,726.15 × 13,353.42
4. Step 4: Simplify right side
   18,667.83x = 343,532,085.93
5. Step 5: Solve for x
   x = 343,532,085.93/18,667.83
6. Step 6: Final answer
   x = 18,402.36