Finding the Fourth Proportional to 10,521.14, 14,518.46 and 5,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.14 : 14,518.46 = 5,805.50 : x
2. Step 2: Convert to fraction form
   10,521.14/14,518.46 = 5,805.50/x
3. Step 3: Cross multiply
   10,521.14x = 14,518.46 × 5,805.50
4. Step 4: Simplify right side
   10,521.14x = 84,286,890.50
5. Step 5: Solve for x
   x = 84,286,890.50/10,521.14
6. Step 6: Final answer
   x = 8,011.19