Finding the Fourth Proportional to 57,757.76, 86,610.72 and 26,576

Step by Step Solution

1. Step 1: Write the proportion equation
   57,757.76 : 86,610.72 = 26,576 : x
2. Step 2: Convert to fraction form
   57,757.76/86,610.72 = 26,576/x
3. Step 3: Cross multiply
   57,757.76x = 86,610.72 × 26,576
4. Step 4: Simplify right side
   57,757.76x = 2,301,766,494.72
5. Step 5: Solve for x
   x = 2,301,766,494.72/57,757.76
6. Step 6: Final answer
   x = 39,852.07