Finding the Fourth Proportional to 10,636.49, 14,678.88 and 5,920.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,636.49 : 14,678.88 = 5,920.67 : x
2. Step 2: Convert to fraction form
   10,636.49/14,678.88 = 5,920.67/x
3. Step 3: Cross multiply
   10,636.49x = 14,678.88 × 5,920.67
4. Step 4: Simplify right side
   10,636.49x = 86,908,804.45
5. Step 5: Solve for x
   x = 86,908,804.45/10,636.49
6. Step 6: Final answer
   x = 8,170.82