Finding the Fourth Proportional to 12,692.76, 17,515.89 and 7,103.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,692.76 : 17,515.89 = 7,103.76 : x
2. Step 2: Convert to fraction form
   12,692.76/17,515.89 = 7,103.76/x
3. Step 3: Cross multiply
   12,692.76x = 17,515.89 × 7,103.76
4. Step 4: Simplify right side
   12,692.76x = 124,428,678.75
5. Step 5: Solve for x
   x = 124,428,678.75/12,692.76
6. Step 6: Final answer
   x = 9,803.12