Finding the Fourth Proportional to 10,520.90, 14,518.83 and 5,805.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.90 : 14,518.83 = 5,805.18 : x
2. Step 2: Convert to fraction form
   10,520.90/14,518.83 = 5,805.18/x
3. Step 3: Cross multiply
   10,520.90x = 14,518.83 × 5,805.18
4. Step 4: Simplify right side
   10,520.90x = 84,284,421.54
5. Step 5: Solve for x
   x = 84,284,421.54/10,520.90
6. Step 6: Final answer
   x = 8,011.15