Finding the Fourth Proportional to 13,008.27, 19,515.51 and 4,243.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.27 : 19,515.51 = 4,243.19 : x
2. Step 2: Convert to fraction form
   13,008.27/19,515.51 = 4,243.19/x
3. Step 3: Cross multiply
   13,008.27x = 19,515.51 × 4,243.19
4. Step 4: Simplify right side
   13,008.27x = 82,808,016.88
5. Step 5: Solve for x
   x = 82,808,016.88/13,008.27
6. Step 6: Final answer
   x = 6,365.80