Finding the Fourth Proportional to 2,661,352,428.67, 3,992,035,404.34 and 1,087,459,736.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661,352,428.67 : 3,992,035,404.34 = 1,087,459,736.56 : x
2. Step 2: Convert to fraction form
   2,661,352,428.67/3,992,035,404.34 = 1,087,459,736.56/x
3. Step 3: Cross multiply
   2,661,352,428.67x = 3,992,035,404.34 × 1,087,459,736.56
4. Step 4: Simplify right side
   2,661,352,428.67x = 4,341,177,769,141,769,216
5. Step 5: Solve for x
   x = 4,341,177,769,141,769,216/2,661,352,428.67
6. Step 6: Final answer
   x = 1,631,192,367.60