Finding the Fourth Proportional to 82,136,357.38, 123,325,650.53 and 45,815,711.14

Step by Step Solution

1. Step 1: Write the proportion equation
   82,136,357.38 : 123,325,650.53 = 45,815,711.14 : x
2. Step 2: Convert to fraction form
   82,136,357.38/123,325,650.53 = 45,815,711.14/x
3. Step 3: Cross multiply
   82,136,357.38x = 123,325,650.53 × 45,815,711.14
4. Step 4: Simplify right side
   82,136,357.38x = 5,650,252,379,989,361
5. Step 5: Solve for x
   x = 5,650,252,379,989,361/82,136,357.38
6. Step 6: Final answer
   x = 68,791,124.42