Finding the Fourth Proportional to 82,412.31, 123,577.55 and 26,245.09

Step by Step Solution

1. Step 1: Write the proportion equation
   82,412.31 : 123,577.55 = 26,245.09 : x
2. Step 2: Convert to fraction form
   82,412.31/123,577.55 = 26,245.09/x
3. Step 3: Cross multiply
   82,412.31x = 123,577.55 × 26,245.09
4. Step 4: Simplify right side
   82,412.31x = 3,243,303,921.73
5. Step 5: Solve for x
   x = 3,243,303,921.73/82,412.31
6. Step 6: Final answer
   x = 39,354.61