Finding the Fourth Proportional to 2,427,005,918.78, 3,349,244,323.59 and 1,313,147,573.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427,005,918.78 : 3,349,244,323.59 = 1,313,147,573.18 : x
2. Step 2: Convert to fraction form
   2,427,005,918.78/3,349,244,323.59 = 1,313,147,573.18/x
3. Step 3: Cross multiply
   2,427,005,918.78x = 3,349,244,323.59 × 1,313,147,573.18
4. Step 4: Simplify right side
   2,427,005,918.78x = 4,398,052,055,509,099,520
5. Step 5: Solve for x
   x = 4,398,052,055,509,099,520/2,427,005,918.78
6. Step 6: Final answer
   x = 1,812,130,749.86