Finding the Fourth Proportional to 22,109.08, 30,509.78 and 13,154.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,109.08 : 30,509.78 = 13,154.54 : x
2. Step 2: Convert to fraction form
   22,109.08/30,509.78 = 13,154.54/x
3. Step 3: Cross multiply
   22,109.08x = 30,509.78 × 13,154.54
4. Step 4: Simplify right side
   22,109.08x = 401,342,121.40
5. Step 5: Solve for x
   x = 401,342,121.40/22,109.08
6. Step 6: Final answer
   x = 18,152.82