Finding the Fourth Proportional to 139,110,644.18, 209,665,872.83 and 119,911,598.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,110,644.18 : 209,665,872.83 = 119,911,598.12 : x
2. Step 2: Convert to fraction form
   139,110,644.18/209,665,872.83 = 119,911,598.12/x
3. Step 3: Cross multiply
   139,110,644.18x = 209,665,872.83 × 119,911,598.12
4. Step 4: Simplify right side
   139,110,644.18x = 25,141,369,880,622,096
5. Step 5: Solve for x
   x = 25,141,369,880,622,096/139,110,644.18
6. Step 6: Final answer
   x = 180,729,303.86