Finding the Fourth Proportional to 10,636.13, 14,678.33 and 5,920.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.13 : 14,678.33 = 5,920.71 : x
2. Step 2: Convert to fraction form
   10,636.13/14,678.33 = 5,920.71/x
3. Step 3: Cross multiply
   10,636.13x = 14,678.33 × 5,920.71
4. Step 4: Simplify right side
   10,636.13x = 86,906,105.61
5. Step 5: Solve for x
   x = 86,906,105.61/10,636.13
6. Step 6: Final answer
   x = 8,170.84