Finding the Fourth Proportional to 2,551,017,871.42, 3,826,526,856.30 and 612,321,103.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,017,871.42 : 3,826,526,856.30 = 612,321,103.42 : x
2. Step 2: Convert to fraction form
   2,551,017,871.42/3,826,526,856.30 = 612,321,103.42/x
3. Step 3: Cross multiply
   2,551,017,871.42x = 3,826,526,856.30 × 612,321,103.42
4. Step 4: Simplify right side
   2,551,017,871.42x = 2,343,063,146,915,879,936
5. Step 5: Solve for x
   x = 2,343,063,146,915,879,936/2,551,017,871.42
6. Step 6: Final answer
   x = 918,481,666.93