Finding the Fourth Proportional to 13,499.81, 18,655.47 and 9,735.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,499.81 : 18,655.47 = 9,735.33 : x
2. Step 2: Convert to fraction form
   13,499.81/18,655.47 = 9,735.33/x
3. Step 3: Cross multiply
   13,499.81x = 18,655.47 × 9,735.33
4. Step 4: Simplify right side
   13,499.81x = 181,617,156.76
5. Step 5: Solve for x
   x = 181,617,156.76/13,499.81
6. Step 6: Final answer
   x = 13,453.31