Finding the Fourth Proportional to 83,669,149,515.15, 125,503,724,272.72 and 83,669,149,515.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,669,149,515.15 : 125,503,724,272.72 = 83,669,149,515.15 : x
2. Step 2: Convert to fraction form
   83,669,149,515.15/125,503,724,272.72 = 83,669,149,515.15/x
3. Step 3: Cross multiply
   83,669,149,515.15x = 125,503,724,272.72 × 83,669,149,515.15
4. Step 4: Simplify right side
   83,669,149,515.15x = 10,500,789,870,882,369,568,768
5. Step 5: Solve for x
   x = 10,500,789,870,882,369,568,768/83,669,149,515.15
6. Step 6: Final answer
   x = 125,503,724,272.72