Finding the Fourth Proportional to 13,745,128.82, 18,967,171.59 and 7,944,286.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,745,128.82 : 18,967,171.59 = 7,944,286.28 : x
2. Step 2: Convert to fraction form
   13,745,128.82/18,967,171.59 = 7,944,286.28/x
3. Step 3: Cross multiply
   13,745,128.82x = 18,967,171.59 × 7,944,286.28
4. Step 4: Simplify right side
   13,745,128.82x = 150,680,640,938,006.94
5. Step 5: Solve for x
   x = 150,680,640,938,006.94/13,745,128.82
6. Step 6: Final answer
   x = 10,962,475.72