Finding the Fourth Proportional to 10,436.60, 14,403.06 and 5,721.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.60 : 14,403.06 = 5,721.08 : x
2. Step 2: Convert to fraction form
   10,436.60/14,403.06 = 5,721.08/x
3. Step 3: Cross multiply
   10,436.60x = 14,403.06 × 5,721.08
4. Step 4: Simplify right side
   10,436.60x = 82,401,058.50
5. Step 5: Solve for x
   x = 82,401,058.50/10,436.60
6. Step 6: Final answer
   x = 7,895.39