Finding the Fourth Proportional to 22,146.67, 30,561.69 and 13,192.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,146.67 : 30,561.69 = 13,192.12 : x
2. Step 2: Convert to fraction form
   22,146.67/30,561.69 = 13,192.12/x
3. Step 3: Cross multiply
   22,146.67x = 30,561.69 × 13,192.12
4. Step 4: Simplify right side
   22,146.67x = 403,173,481.88
5. Step 5: Solve for x
   x = 403,173,481.88/22,146.67
6. Step 6: Final answer
   x = 18,204.70