Finding the Fourth Proportional to 2,621,072,470.86, 3,931,623,404.82 and 874,270,412.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621,072,470.86 : 3,931,623,404.82 = 874,270,412.01 : x
2. Step 2: Convert to fraction form
   2,621,072,470.86/3,931,623,404.82 = 874,270,412.01/x
3. Step 3: Cross multiply
   2,621,072,470.86x = 3,931,623,404.82 × 874,270,412.01
4. Step 4: Simplify right side
   2,621,072,470.86x = 3,437,302,014,000,140,288
5. Step 5: Solve for x
   x = 3,437,302,014,000,140,288/2,621,072,470.86
6. Step 6: Final answer
   x = 1,311,410,520.78