Finding the Fourth Proportional to 10,520.86, 14,518.83 and 5,805.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.86 : 14,518.83 = 5,805.28 : x
2. Step 2: Convert to fraction form
   10,520.86/14,518.83 = 5,805.28/x
3. Step 3: Cross multiply
   10,520.86x = 14,518.83 × 5,805.28
4. Step 4: Simplify right side
   10,520.86x = 84,285,873.42
5. Step 5: Solve for x
   x = 84,285,873.42/10,520.86
6. Step 6: Final answer
   x = 8,011.31