Finding the Fourth Proportional to 22,081.22, 30,472.32 and 12,649.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.22 : 30,472.32 = 12,649.58 : x
2. Step 2: Convert to fraction form
   22,081.22/30,472.32 = 12,649.58/x
3. Step 3: Cross multiply
   22,081.22x = 30,472.32 × 12,649.58
4. Step 4: Simplify right side
   22,081.22x = 385,462,049.63
5. Step 5: Solve for x
   x = 385,462,049.63/22,081.22
6. Step 6: Final answer
   x = 17,456.56