Finding the Fourth Proportional to 2,590,767,428.22, 3,886,162,472.37 and 820,146,792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590,767,428.22 : 3,886,162,472.37 = 820,146,792.72 : x
2. Step 2: Convert to fraction form
   2,590,767,428.22/3,886,162,472.37 = 820,146,792.72/x
3. Step 3: Cross multiply
   2,590,767,428.22x = 3,886,162,472.37 × 820,146,792.72
4. Step 4: Simplify right side
   2,590,767,428.22x = 3,187,223,687,703,080,960
5. Step 5: Solve for x
   x = 3,187,223,687,703,080,960/2,590,767,428.22
6. Step 6: Final answer
   x = 1,230,223,775.78