Finding the Fourth Proportional to 13,301.30, 19,938.49 and 8,624.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,301.30 : 19,938.49 = 8,624.27 : x
2. Step 2: Convert to fraction form
   13,301.30/19,938.49 = 8,624.27/x
3. Step 3: Cross multiply
   13,301.30x = 19,938.49 × 8,624.27
4. Step 4: Simplify right side
   13,301.30x = 171,954,949.44
5. Step 5: Solve for x
   x = 171,954,949.44/13,301.30
6. Step 6: Final answer
   x = 12,927.68