Finding the Fourth Proportional to 22,106.81, 30,498.57 and 13,151.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,106.81 : 30,498.57 = 13,151.04 : x
2. Step 2: Convert to fraction form
   22,106.81/30,498.57 = 13,151.04/x
3. Step 3: Cross multiply
   22,106.81x = 30,498.57 × 13,151.04
4. Step 4: Simplify right side
   22,106.81x = 401,087,914.01
5. Step 5: Solve for x
   x = 401,087,914.01/22,106.81
6. Step 6: Final answer
   x = 18,143.19