Finding the Fourth Proportional to 22,109.81, 30,502.71 and 13,154.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,109.81 : 30,502.71 = 13,154.04 : x
2. Step 2: Convert to fraction form
   22,109.81/30,502.71 = 13,154.04/x
3. Step 3: Cross multiply
   22,109.81x = 30,502.71 × 13,154.04
4. Step 4: Simplify right side
   22,109.81x = 401,233,867.45
5. Step 5: Solve for x
   x = 401,233,867.45/22,109.81
6. Step 6: Final answer
   x = 18,147.32