Finding the Fourth Proportional to 16,162.08, 22,298.31 and 13,172.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,162.08 : 22,298.31 = 13,172.78 : x
2. Step 2: Convert to fraction form
   16,162.08/22,298.31 = 13,172.78/x
3. Step 3: Cross multiply
   16,162.08x = 22,298.31 × 13,172.78
4. Step 4: Simplify right side
   16,162.08x = 293,730,732.00
5. Step 5: Solve for x
   x = 293,730,732.00/16,162.08
6. Step 6: Final answer
   x = 18,174.07