Finding the Fourth Proportional to 2,556,557,002.81, 3,831,445,353.30 and 1,312,937,233.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,557,002.81 : 3,831,445,353.30 = 1,312,937,233.12 : x
2. Step 2: Convert to fraction form
   2,556,557,002.81/3,831,445,353.30 = 1,312,937,233.12/x
3. Step 3: Cross multiply
   2,556,557,002.81x = 3,831,445,353.30 × 1,312,937,233.12
4. Step 4: Simplify right side
   2,556,557,002.81x = 5,030,447,261,012,183,040
5. Step 5: Solve for x
   x = 5,030,447,261,012,183,040/2,556,557,002.81
6. Step 6: Final answer
   x = 1,967,664,814.62