Finding the Fourth Proportional to 82,811,784.10, 124,217,676.15 and 82,811,784.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,811,784.10 : 124,217,676.15 = 82,811,784.10 : x
2. Step 2: Convert to fraction form
   82,811,784.10/124,217,676.15 = 82,811,784.10/x
3. Step 3: Cross multiply
   82,811,784.10x = 124,217,676.15 × 82,811,784.10
4. Step 4: Simplify right side
   82,811,784.10x = 10,286,687,378,737,518
5. Step 5: Solve for x
   x = 10,286,687,378,737,518/82,811,784.10
6. Step 6: Final answer
   x = 124,217,676.15