Finding the Fourth Proportional to 10,636.92, 14,678.70 and 5,921.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.92 : 14,678.70 = 5,921.10 : x
2. Step 2: Convert to fraction form
   10,636.92/14,678.70 = 5,921.10/x
3. Step 3: Cross multiply
   10,636.92x = 14,678.70 × 5,921.10
4. Step 4: Simplify right side
   10,636.92x = 86,914,050.57
5. Step 5: Solve for x
   x = 86,914,050.57/10,636.92
6. Step 6: Final answer
   x = 8,170.98