Finding the Fourth Proportional to 139,739,426.37, 192,841,198.94 and 81,036,945.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,739,426.37 : 192,841,198.94 = 81,036,945.59 : x
2. Step 2: Convert to fraction form
   139,739,426.37/192,841,198.94 = 81,036,945.59/x
3. Step 3: Cross multiply
   139,739,426.37x = 192,841,198.94 × 81,036,945.59
4. Step 4: Simplify right side
   139,739,426.37x = 15,627,261,745,249,530
5. Step 5: Solve for x
   x = 15,627,261,745,249,530/139,739,426.37
6. Step 6: Final answer
   x = 111,831,443.36