Finding the Fourth Proportional to 22,266.06, 30,729.48 and 13,196.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,266.06 : 30,729.48 = 13,196.86 : x
2. Step 2: Convert to fraction form
   22,266.06/30,729.48 = 13,196.86/x
3. Step 3: Cross multiply
   22,266.06x = 30,729.48 × 13,196.86
4. Step 4: Simplify right side
   22,266.06x = 405,532,645.43
5. Step 5: Solve for x
   x = 405,532,645.43/22,266.06
6. Step 6: Final answer
   x = 18,213.04