Finding the Fourth Proportional to 2,945,998,981.86, 4,419,827,520.78 and 1,288,051,865.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945,998,981.86 : 4,419,827,520.78 = 1,288,051,865.34 : x
2. Step 2: Convert to fraction form
   2,945,998,981.86/4,419,827,520.78 = 1,288,051,865.34/x
3. Step 3: Cross multiply
   2,945,998,981.86x = 4,419,827,520.78 × 1,288,051,865.34
4. Step 4: Simplify right side
   2,945,998,981.86x = 5,692,967,082,621,746,176
5. Step 5: Solve for x
   x = 5,692,967,082,621,746,176/2,945,998,981.86
6. Step 6: Final answer
   x = 1,932,440,274.99