Finding the Fourth Proportional to 22,618.76, 31,217.18 and 13,667.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,618.76 : 31,217.18 = 13,667.56 : x
2. Step 2: Convert to fraction form
   22,618.76/31,217.18 = 13,667.56/x
3. Step 3: Cross multiply
   22,618.76x = 31,217.18 × 13,667.56
4. Step 4: Simplify right side
   22,618.76x = 426,662,680.68
5. Step 5: Solve for x
   x = 426,662,680.68/22,618.76
6. Step 6: Final answer
   x = 18,863.22