Finding the Fourth Proportional to 89,588.28, 123,606.18 and 57,775.44

Step by Step Solution

1. Step 1: Write the proportion equation
   89,588.28 : 123,606.18 = 57,775.44 : x
2. Step 2: Convert to fraction form
   89,588.28/123,606.18 = 57,775.44/x
3. Step 3: Cross multiply
   89,588.28x = 123,606.18 × 57,775.44
4. Step 4: Simplify right side
   89,588.28x = 7,141,401,436.22
5. Step 5: Solve for x
   x = 7,141,401,436.22/89,588.28
6. Step 6: Final answer
   x = 79,713.57