Finding the Fourth Proportional to 10,636.75, 14,678.72 and 5,921.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.75 : 14,678.72 = 5,921.34 : x
2. Step 2: Convert to fraction form
   10,636.75/14,678.72 = 5,921.34/x
3. Step 3: Cross multiply
   10,636.75x = 14,678.72 × 5,921.34
4. Step 4: Simplify right side
   10,636.75x = 86,917,588.88
5. Step 5: Solve for x
   x = 86,917,588.88/10,636.75
6. Step 6: Final answer
   x = 8,171.44