Finding the Fourth Proportional to 10,521.02, 14,519.18 and 5,805.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.02 : 14,519.18 = 5,805.31 : x
2. Step 2: Convert to fraction form
   10,521.02/14,519.18 = 5,805.31/x
3. Step 3: Cross multiply
   10,521.02x = 14,519.18 × 5,805.31
4. Step 4: Simplify right side
   10,521.02x = 84,288,340.85
5. Step 5: Solve for x
   x = 84,288,340.85/10,521.02
6. Step 6: Final answer
   x = 8,011.42