Finding the Fourth Proportional to 10,521.88, 14,520.18 and 5,806.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.88 : 14,520.18 = 5,806.16 : x
2. Step 2: Convert to fraction form
   10,521.88/14,520.18 = 5,806.16/x
3. Step 3: Cross multiply
   10,521.88x = 14,520.18 × 5,806.16
4. Step 4: Simplify right side
   10,521.88x = 84,306,488.31
5. Step 5: Solve for x
   x = 84,306,488.31/10,521.88
6. Step 6: Final answer
   x = 8,012.49