Finding the Fourth Proportional to 22,196.54, 30,631.21 and 12,765.11

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.54 : 30,631.21 = 12,765.11 : x
2. Step 2: Convert to fraction form
   22,196.54/30,631.21 = 12,765.11/x
3. Step 3: Cross multiply
   22,196.54x = 30,631.21 × 12,765.11
4. Step 4: Simplify right side
   22,196.54x = 391,010,580.01
5. Step 5: Solve for x
   x = 391,010,580.01/22,196.54
6. Step 6: Final answer
   x = 17,615.83