Finding the Fourth Proportional to 22,196.58, 30,632.19 and 12,765.15

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.58 : 30,632.19 = 12,765.15 : x
2. Step 2: Convert to fraction form
   22,196.58/30,632.19 = 12,765.15/x
3. Step 3: Cross multiply
   22,196.58x = 30,632.19 × 12,765.15
4. Step 4: Simplify right side
   22,196.58x = 391,024,500.18
5. Step 5: Solve for x
   x = 391,024,500.18/22,196.58
6. Step 6: Final answer
   x = 17,616.43