Finding the Fourth Proportional to 2,812,218,074.52, 4,219,146,194.31 and 1,259,146,189.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,812,218,074.52 : 4,219,146,194.31 = 1,259,146,189.14 : x
2. Step 2: Convert to fraction form
   2,812,218,074.52/4,219,146,194.31 = 1,259,146,189.14/x
3. Step 3: Cross multiply
   2,812,218,074.52x = 4,219,146,194.31 × 1,259,146,189.14
4. Step 4: Simplify right side
   2,812,218,074.52x = 5,312,521,851,989,970,944
5. Step 5: Solve for x
   x = 5,312,521,851,989,970,944/2,812,218,074.52
6. Step 6: Final answer
   x = 1,889,086,020.79