Finding the Fourth Proportional to 2,119,662,074.72, 3,179,967,319.60 and 645,917,225.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119,662,074.72 : 3,179,967,319.60 = 645,917,225.06 : x
2. Step 2: Convert to fraction form
   2,119,662,074.72/3,179,967,319.60 = 645,917,225.06/x
3. Step 3: Cross multiply
   2,119,662,074.72x = 3,179,967,319.60 × 645,917,225.06
4. Step 4: Simplify right side
   2,119,662,074.72x = 2,053,995,666,863,788,800
5. Step 5: Solve for x
   x = 2,053,995,666,863,788,800/2,119,662,074.72
6. Step 6: Final answer
   x = 969,020,341.19