Finding the Fourth Proportional to 12,692.87, 17,515.94 and 7,027.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,692.87 : 17,515.94 = 7,027.50 : x
2. Step 2: Convert to fraction form
   12,692.87/17,515.94 = 7,027.50/x
3. Step 3: Cross multiply
   12,692.87x = 17,515.94 × 7,027.50
4. Step 4: Simplify right side
   12,692.87x = 123,093,233.21
5. Step 5: Solve for x
   x = 123,093,233.21/12,692.87
6. Step 6: Final answer
   x = 9,697.83