Finding the Fourth Proportional to 12,685.46, 17,494.37 and 10,892.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,685.46 : 17,494.37 = 10,892.38 : x
2. Step 2: Convert to fraction form
   12,685.46/17,494.37 = 10,892.38/x
3. Step 3: Cross multiply
   12,685.46x = 17,494.37 × 10,892.38
4. Step 4: Simplify right side
   12,685.46x = 190,555,219.45
5. Step 5: Solve for x
   x = 190,555,219.45/12,685.46
6. Step 6: Final answer
   x = 15,021.55