Finding the Fourth Proportional to 10,687.05, 16,036.61 and 5,756.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.05 : 16,036.61 = 5,756.58 : x
2. Step 2: Convert to fraction form
   10,687.05/16,036.61 = 5,756.58/x
3. Step 3: Cross multiply
   10,687.05x = 16,036.61 × 5,756.58
4. Step 4: Simplify right side
   10,687.05x = 92,315,999.61
5. Step 5: Solve for x
   x = 92,315,999.61/10,687.05
6. Step 6: Final answer
   x = 8,638.12