Finding the Fourth Proportional to 22,196.53, 30,631.23 and 12,765.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.53 : 30,631.23 = 12,765.09 : x
2. Step 2: Convert to fraction form
   22,196.53/30,631.23 = 12,765.09/x
3. Step 3: Cross multiply
   22,196.53x = 30,631.23 × 12,765.09
4. Step 4: Simplify right side
   22,196.53x = 391,010,522.63
5. Step 5: Solve for x
   x = 391,010,522.63/22,196.53
6. Step 6: Final answer
   x = 17,615.84