Finding the Fourth Proportional to 2,147,472,976.78, 2,963,466,258.70 and 1,243,267,042.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147,472,976.78 : 2,963,466,258.70 = 1,243,267,042.48 : x
2. Step 2: Convert to fraction form
   2,147,472,976.78/2,963,466,258.70 = 1,243,267,042.48/x
3. Step 3: Cross multiply
   2,147,472,976.78x = 2,963,466,258.70 × 1,243,267,042.48
4. Step 4: Simplify right side
   2,147,472,976.78x = 3,684,379,930,943,219,200
5. Step 5: Solve for x
   x = 3,684,379,930,943,219,200/2,147,472,976.78
6. Step 6: Final answer
   x = 1,715,681,627.09