Finding the Fourth Proportional to 16,896.86, 23,315.63 and 9,342.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,896.86 : 23,315.63 = 9,342.17 : x
2. Step 2: Convert to fraction form
   16,896.86/23,315.63 = 9,342.17/x
3. Step 3: Cross multiply
   16,896.86x = 23,315.63 × 9,342.17
4. Step 4: Simplify right side
   16,896.86x = 217,818,415.83
5. Step 5: Solve for x
   x = 217,818,415.83/16,896.86
6. Step 6: Final answer
   x = 12,891.06