Finding the Fourth Proportional to 10,932.40, 16,394.57 and 3,910.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,932.40 : 16,394.57 = 3,910.51 : x
2. Step 2: Convert to fraction form
   10,932.40/16,394.57 = 3,910.51/x
3. Step 3: Cross multiply
   10,932.40x = 16,394.57 × 3,910.51
4. Step 4: Simplify right side
   10,932.40x = 64,111,084.06
5. Step 5: Solve for x
   x = 64,111,084.06/10,932.40
6. Step 6: Final answer
   x = 5,864.32