Finding the Fourth Proportional to 2,130,042,066.29, 2,939,401,665.48 and 1,190,252,430.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130,042,066.29 : 2,939,401,665.48 = 1,190,252,430.71 : x
2. Step 2: Convert to fraction form
   2,130,042,066.29/2,939,401,665.48 = 1,190,252,430.71/x
3. Step 3: Cross multiply
   2,130,042,066.29x = 2,939,401,665.48 × 1,190,252,430.71
4. Step 4: Simplify right side
   2,130,042,066.29x = 3,498,629,977,170,592,256
5. Step 5: Solve for x
   x = 3,498,629,977,170,592,256/2,130,042,066.29
6. Step 6: Final answer
   x = 1,642,516,846.28