Finding the Fourth Proportional to 13,150.17, 19,729.89 and 8,214.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,150.17 : 19,729.89 = 8,214.03 : x
2. Step 2: Convert to fraction form
   13,150.17/19,729.89 = 8,214.03/x
3. Step 3: Cross multiply
   13,150.17x = 19,729.89 × 8,214.03
4. Step 4: Simplify right side
   13,150.17x = 162,061,908.36
5. Step 5: Solve for x
   x = 162,061,908.36/13,150.17
6. Step 6: Final answer
   x = 12,323.94