Finding the Fourth Proportional to 10,286.49, 14,195.33 and 5,570.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,286.49 : 14,195.33 = 5,570.76 : x
2. Step 2: Convert to fraction form
   10,286.49/14,195.33 = 5,570.76/x
3. Step 3: Cross multiply
   10,286.49x = 14,195.33 × 5,570.76
4. Step 4: Simplify right side
   10,286.49x = 79,078,677.72
5. Step 5: Solve for x
   x = 79,078,677.72/10,286.49
6. Step 6: Final answer
   x = 7,687.63