Finding the Fourth Proportional to 10,692.78, 16,134.06 and 10,692.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,692.78 : 16,134.06 = 10,692.78 : x
2. Step 2: Convert to fraction form
   10,692.78/16,134.06 = 10,692.78/x
3. Step 3: Cross multiply
   10,692.78x = 16,134.06 × 10,692.78
4. Step 4: Simplify right side
   10,692.78x = 172,517,954.09
5. Step 5: Solve for x
   x = 172,517,954.09/10,692.78
6. Step 6: Final answer
   x = 16,134.06