Finding the Fourth Proportional to 10,434.15, 15,636.58 and 5,756.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.15 : 15,636.58 = 5,756.33 : x
2. Step 2: Convert to fraction form
   10,434.15/15,636.58 = 5,756.33/x
3. Step 3: Cross multiply
   10,434.15x = 15,636.58 × 5,756.33
4. Step 4: Simplify right side
   10,434.15x = 90,009,339.25
5. Step 5: Solve for x
   x = 90,009,339.25/10,434.15
6. Step 6: Final answer
   x = 8,626.42