Finding the Fourth Proportional to 13,182.47, 18,191.49 and 7,214.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,182.47 : 18,191.49 = 7,214.18 : x
2. Step 2: Convert to fraction form
   13,182.47/18,191.49 = 7,214.18/x
3. Step 3: Cross multiply
   13,182.47x = 18,191.49 × 7,214.18
4. Step 4: Simplify right side
   13,182.47x = 131,236,683.33
5. Step 5: Solve for x
   x = 131,236,683.33/13,182.47
6. Step 6: Final answer
   x = 9,955.39