Finding the Fourth Proportional to 22,149.35, 30,561.35 and 13,199.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,149.35 : 30,561.35 = 13,199.81 : x
2. Step 2: Convert to fraction form
   22,149.35/30,561.35 = 13,199.81/x
3. Step 3: Cross multiply
   22,149.35x = 30,561.35 × 13,199.81
4. Step 4: Simplify right side
   22,149.35x = 403,404,040.69
5. Step 5: Solve for x
   x = 403,404,040.69/22,149.35
6. Step 6: Final answer
   x = 18,212.91