Finding the Fourth Proportional to 10,329.98, 15,496.72 and 4,086.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,329.98 : 15,496.72 = 4,086.70 : x
2. Step 2: Convert to fraction form
   10,329.98/15,496.72 = 4,086.70/x
3. Step 3: Cross multiply
   10,329.98x = 15,496.72 × 4,086.70
4. Step 4: Simplify right side
   10,329.98x = 63,330,483.83
5. Step 5: Solve for x
   x = 63,330,483.83/10,329.98
6. Step 6: Final answer
   x = 6,130.75