Finding the Fourth Proportional to 82,139.73, 123,191 and 37,723.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,139.73 : 123,191 = 37,723.78 : x
2. Step 2: Convert to fraction form
   82,139.73/123,191 = 37,723.78/x
3. Step 3: Cross multiply
   82,139.73x = 123,191 × 37,723.78
4. Step 4: Simplify right side
   82,139.73x = 4,647,230,181.98
5. Step 5: Solve for x
   x = 4,647,230,181.98/82,139.73
6. Step 6: Final answer
   x = 56,577.13