Finding the Fourth Proportional to 22,116.84, 30,519.72 and 13,164.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,116.84 : 30,519.72 = 13,164.96 : x
2. Step 2: Convert to fraction form
   22,116.84/30,519.72 = 13,164.96/x
3. Step 3: Cross multiply
   22,116.84x = 30,519.72 × 13,164.96
4. Step 4: Simplify right side
   22,116.84x = 401,790,893.01
5. Step 5: Solve for x
   x = 401,790,893.01/22,116.84
6. Step 6: Final answer
   x = 18,166.74