Finding the Fourth Proportional to 13,437.69, 18,544.23 and 7,388.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,437.69 : 18,544.23 = 7,388.18 : x
2. Step 2: Convert to fraction form
   13,437.69/18,544.23 = 7,388.18/x
3. Step 3: Cross multiply
   13,437.69x = 18,544.23 × 7,388.18
4. Step 4: Simplify right side
   13,437.69x = 137,008,141.71
5. Step 5: Solve for x
   x = 137,008,141.71/13,437.69
6. Step 6: Final answer
   x = 10,195.81