Finding the Fourth Proportional to 139,968,297.70, 209,952,446.55 and 49,101,072.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,297.70 : 209,952,446.55 = 49,101,072.10 : x
2. Step 2: Convert to fraction form
   139,968,297.70/209,952,446.55 = 49,101,072.10/x
3. Step 3: Cross multiply
   139,968,297.70x = 209,952,446.55 × 49,101,072.10
4. Step 4: Simplify right side
   139,968,297.70x = 10,308,890,215,622,948
5. Step 5: Solve for x
   x = 10,308,890,215,622,948/139,968,297.70
6. Step 6: Final answer
   x = 73,651,608.15