Finding the Fourth Proportional to 22,128,196.14, 33,173,361.54 and 8,491,128.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,128,196.14 : 33,173,361.54 = 8,491,128.48 : x
2. Step 2: Convert to fraction form
   22,128,196.14/33,173,361.54 = 8,491,128.48/x
3. Step 3: Cross multiply
   22,128,196.14x = 33,173,361.54 × 8,491,128.48
4. Step 4: Simplify right side
   22,128,196.14x = 281,679,274,949,630.69
5. Step 5: Solve for x
   x = 281,679,274,949,630.69/22,128,196.14
6. Step 6: Final answer
   x = 12,729,427.79