Finding the Fourth Proportional to 2,160,964,089.72, 2,982,164,301.36 and 1,268,910,542.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160,964,089.72 : 2,982,164,301.36 = 1,268,910,542.16 : x
2. Step 2: Convert to fraction form
   2,160,964,089.72/2,982,164,301.36 = 1,268,910,542.16/x
3. Step 3: Cross multiply
   2,160,964,089.72x = 2,982,164,301.36 × 1,268,910,542.16
4. Step 4: Simplify right side
   2,160,964,089.72x = 3,784,099,720,448,915,456
5. Step 5: Solve for x
   x = 3,784,099,720,448,915,456/2,160,964,089.72
6. Step 6: Final answer
   x = 1,751,116,429.21