Finding the Fourth Proportional to 2,638,609,933.84, 3,958,401,475.47 and 868,080,300.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,609,933.84 : 3,958,401,475.47 = 868,080,300.10 : x
2. Step 2: Convert to fraction form
   2,638,609,933.84/3,958,401,475.47 = 868,080,300.10/x
3. Step 3: Cross multiply
   2,638,609,933.84x = 3,958,401,475.47 × 868,080,300.10
4. Step 4: Simplify right side
   2,638,609,933.84x = 3,436,210,340,742,280,192
5. Step 5: Solve for x
   x = 3,436,210,340,742,280,192/2,638,609,933.84
6. Step 6: Final answer
   x = 1,302,280,529.10