Finding the Fourth Proportional to 83,669,134,781.15, 125,503,702,171.72 and 83,669,134,781.15

Step by Step Solution

1. Step 1: Write the proportion equation
   83,669,134,781.15 : 125,503,702,171.72 = 83,669,134,781.15 : x
2. Step 2: Convert to fraction form
   83,669,134,781.15/125,503,702,171.72 = 83,669,134,781.15/x
3. Step 3: Cross multiply
   83,669,134,781.15x = 125,503,702,171.72 × 83,669,134,781.15
4. Step 4: Simplify right side
   83,669,134,781.15x = 10,500,786,172,538,948,419,584
5. Step 5: Solve for x
   x = 10,500,786,172,538,948,419,584/83,669,134,781.15
6. Step 6: Final answer
   x = 125,503,702,171.72