Finding the Fourth Proportional to 22,118.76, 30,519.09 and 13,164.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,118.76 : 30,519.09 = 13,164.51 : x
2. Step 2: Convert to fraction form
   22,118.76/30,519.09 = 13,164.51/x
3. Step 3: Cross multiply
   22,118.76x = 30,519.09 × 13,164.51
4. Step 4: Simplify right side
   22,118.76x = 401,768,865.50
5. Step 5: Solve for x
   x = 401,768,865.50/22,118.76
6. Step 6: Final answer
   x = 18,164.17