Finding the Fourth Proportional to 3,571,560,470.52, 4,929,029,158.69 and 2,142,685,092.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571,560,470.52 : 4,929,029,158.69 = 2,142,685,092.15 : x
2. Step 2: Convert to fraction form
   3,571,560,470.52/4,929,029,158.69 = 2,142,685,092.15/x
3. Step 3: Cross multiply
   3,571,560,470.52x = 4,929,029,158.69 × 2,142,685,092.15
4. Step 4: Simplify right side
   3,571,560,470.52x = 10,561,357,297,106,290,688
5. Step 5: Solve for x
   x = 10,561,357,297,106,290,688/3,571,560,470.52
6. Step 6: Final answer
   x = 2,957,070,833.40