Finding the Fourth Proportional to 13,356.30, 18,428.82 and 10,168.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,356.30 : 18,428.82 = 10,168.92 : x
2. Step 2: Convert to fraction form
   13,356.30/18,428.82 = 10,168.92/x
3. Step 3: Cross multiply
   13,356.30x = 18,428.82 × 10,168.92
4. Step 4: Simplify right side
   13,356.30x = 187,401,196.27
5. Step 5: Solve for x
   x = 187,401,196.27/13,356.30
6. Step 6: Final answer
   x = 14,030.92