Finding the Fourth Proportional to 22,619.88, 31,214.03 and 13,662.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,619.88 : 31,214.03 = 13,662.09 : x
2. Step 2: Convert to fraction form
   22,619.88/31,214.03 = 13,662.09/x
3. Step 3: Cross multiply
   22,619.88x = 31,214.03 × 13,662.09
4. Step 4: Simplify right side
   22,619.88x = 426,448,818.81
5. Step 5: Solve for x
   x = 426,448,818.81/22,619.88
6. Step 6: Final answer
   x = 18,852.83