Finding the Fourth Proportional to 18,667.50, 25,762.98 and 13,943.58

Step by Step Solution

1. Step 1: Write the proportion equation
   18,667.50 : 25,762.98 = 13,943.58 : x
2. Step 2: Convert to fraction form
   18,667.50/25,762.98 = 13,943.58/x
3. Step 3: Cross multiply
   18,667.50x = 25,762.98 × 13,943.58
4. Step 4: Simplify right side
   18,667.50x = 359,228,172.67
5. Step 5: Solve for x
   x = 359,228,172.67/18,667.50
6. Step 6: Final answer
   x = 19,243.51