Finding the Fourth Proportional to 57,768.56, 86,621.52 and 26,576

Step by Step Solution

1. Step 1: Write the proportion equation
   57,768.56 : 86,621.52 = 26,576 : x
2. Step 2: Convert to fraction form
   57,768.56/86,621.52 = 26,576/x
3. Step 3: Cross multiply
   57,768.56x = 86,621.52 × 26,576
4. Step 4: Simplify right side
   57,768.56x = 2,302,053,515.52
5. Step 5: Solve for x
   x = 2,302,053,515.52/57,768.56
6. Step 6: Final answer
   x = 39,849.59