Finding the Fourth Proportional to 19,162.17, 26,443.61 and 10,664.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,162.17 : 26,443.61 = 10,664.16 : x
2. Step 2: Convert to fraction form
   19,162.17/26,443.61 = 10,664.16/x
3. Step 3: Cross multiply
   19,162.17x = 26,443.61 × 10,664.16
4. Step 4: Simplify right side
   19,162.17x = 281,998,775.52
5. Step 5: Solve for x
   x = 281,998,775.52/19,162.17
6. Step 6: Final answer
   x = 14,716.43