Finding the Fourth Proportional to 2,590,767,432.52, 3,886,162,478.82 and 820,146,797.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590,767,432.52 : 3,886,162,478.82 = 820,146,797.06 : x
2. Step 2: Convert to fraction form
   2,590,767,432.52/3,886,162,478.82 = 820,146,797.06/x
3. Step 3: Cross multiply
   2,590,767,432.52x = 3,886,162,478.82 × 820,146,797.06
4. Step 4: Simplify right side
   2,590,767,432.52x = 3,187,223,709,839,542,272
5. Step 5: Solve for x
   x = 3,187,223,709,839,542,272/2,590,767,432.52
6. Step 6: Final answer
   x = 1,230,223,782.28