Finding the Fourth Proportional to 3,826,689,623.17, 5,280,831,636.10 and 2,066,557,031.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,826,689,623.17 : 5,280,831,636.10 = 2,066,557,031.17 : x
2. Step 2: Convert to fraction form
   3,826,689,623.17/5,280,831,636.10 = 2,066,557,031.17/x
3. Step 3: Cross multiply
   3,826,689,623.17x = 5,280,831,636.10 × 2,066,557,031.17
4. Step 4: Simplify right side
   3,826,689,623.17x = 10,913,139,747,989,061,632
5. Step 5: Solve for x
   x = 10,913,139,747,989,061,632/3,826,689,623.17
6. Step 6: Final answer
   x = 2,851,848,679.32