Finding the Fourth Proportional to 57,007.37, 78,692.37 and 51,028.69

Step by Step Solution

1. Step 1: Write the proportion equation
   57,007.37 : 78,692.37 = 51,028.69 : x
2. Step 2: Convert to fraction form
   57,007.37/78,692.37 = 51,028.69/x
3. Step 3: Cross multiply
   57,007.37x = 78,692.37 × 51,028.69
4. Step 4: Simplify right side
   57,007.37x = 4,015,568,554.10
5. Step 5: Solve for x
   x = 4,015,568,554.10/57,007.37
6. Step 6: Final answer
   x = 70,439.46