Finding the Fourth Proportional to 10,520.59, 14,518.71 and 5,805.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.59 : 14,518.71 = 5,805.17 : x
2. Step 2: Convert to fraction form
   10,520.59/14,518.71 = 5,805.17/x
3. Step 3: Cross multiply
   10,520.59x = 14,518.71 × 5,805.17
4. Step 4: Simplify right side
   10,520.59x = 84,283,579.73
5. Step 5: Solve for x
   x = 84,283,579.73/10,520.59
6. Step 6: Final answer
   x = 8,011.30