Finding the Fourth Proportional to 139,834,649,900.88, 209,661,791,662.62 and 54,853,031,113.38

Step by Step Solution

1. Step 1: Write the proportion equation
   139,834,649,900.88 : 209,661,791,662.62 = 54,853,031,113.38 : x
2. Step 2: Convert to fraction form
   139,834,649,900.88/209,661,791,662.62 = 54,853,031,113.38/x
3. Step 3: Cross multiply
   139,834,649,900.88x = 209,661,791,662.62 × 54,853,031,113.38
4. Step 4: Simplify right side
   139,834,649,900.88x = 11,500,584,781,356,688,474,112
5. Step 5: Solve for x
   x = 11,500,584,781,356,688,474,112/139,834,649,900.88
6. Step 6: Final answer
   x = 82,244,170,450.66