Finding the Fourth Proportional to 13,494.14, 18,621.50 and 7,361.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,494.14 : 18,621.50 = 7,361.62 : x
2. Step 2: Convert to fraction form
   13,494.14/18,621.50 = 7,361.62/x
3. Step 3: Cross multiply
   13,494.14x = 18,621.50 × 7,361.62
4. Step 4: Simplify right side
   13,494.14x = 137,084,406.83
5. Step 5: Solve for x
   x = 137,084,406.83/13,494.14
6. Step 6: Final answer
   x = 10,158.81