Finding the Fourth Proportional to 13,735.69, 18,955.25 and 7,448.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,735.69 : 18,955.25 = 7,448.06 : x
2. Step 2: Convert to fraction form
   13,735.69/18,955.25 = 7,448.06/x
3. Step 3: Cross multiply
   13,735.69x = 18,955.25 × 7,448.06
4. Step 4: Simplify right side
   13,735.69x = 141,179,877.39
5. Step 5: Solve for x
   x = 141,179,877.39/13,735.69
6. Step 6: Final answer
   x = 10,278.33