Finding the Fourth Proportional to 13,274,688, 19,912,032 and 3,819,072

Step by Step Solution

1. Step 1: Write the proportion equation
   13,274,688 : 19,912,032 = 3,819,072 : x
2. Step 2: Convert to fraction form
   13,274,688/19,912,032 = 3,819,072/x
3. Step 3: Cross multiply
   13,274,688x = 19,912,032 × 3,819,072
4. Step 4: Simplify right side
   13,274,688x = 76,045,483,874,304
5. Step 5: Solve for x
   x = 76,045,483,874,304/13,274,688
6. Step 6: Final answer
   x = 5,728,608