Finding the Fourth Proportional to 82,136,461.38, 123,325,806.50 and 45,815,815.14

Step by Step Solution

1. Step 1: Write the proportion equation
   82,136,461.38 : 123,325,806.50 = 45,815,815.14 : x
2. Step 2: Convert to fraction form
   82,136,461.38/123,325,806.50 = 45,815,815.14/x
3. Step 3: Cross multiply
   82,136,461.38x = 123,325,806.50 × 45,815,815.14
4. Step 4: Simplify right side
   82,136,461.38x = 5,650,272,352,595,410
5. Step 5: Solve for x
   x = 5,650,272,352,595,410/82,136,461.38
6. Step 6: Final answer
   x = 68,791,280.48