Finding the Fourth Proportional to 2,027,986,585.62, 2,792,117,128.59 and 1,581,376,855.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027,986,585.62 : 2,792,117,128.59 = 1,581,376,855.25 : x
2. Step 2: Convert to fraction form
   2,027,986,585.62/2,792,117,128.59 = 1,581,376,855.25/x
3. Step 3: Cross multiply
   2,027,986,585.62x = 2,792,117,128.59 × 1,581,376,855.25
4. Step 4: Simplify right side
   2,027,986,585.62x = 4,415,389,404,285,353,472
5. Step 5: Solve for x
   x = 4,415,389,404,285,353,472/2,027,986,585.62
6. Step 6: Final answer
   x = 2,177,228,111.66