Finding the Fourth Proportional to 10,521.29, 14,519.36 and 5,805.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.29 : 14,519.36 = 5,805.56 : x
2. Step 2: Convert to fraction form
   10,521.29/14,519.36 = 5,805.56/x
3. Step 3: Cross multiply
   10,521.29x = 14,519.36 × 5,805.56
4. Step 4: Simplify right side
   10,521.29x = 84,293,066.45
5. Step 5: Solve for x
   x = 84,293,066.45/10,521.29
6. Step 6: Final answer
   x = 8,011.66