Finding the Fourth Proportional to 10,132.20, 13,995.72 and 7,770.24

Step by Step Solution

1. Step 1: Write the proportion equation
   10,132.20 : 13,995.72 = 7,770.24 : x
2. Step 2: Convert to fraction form
   10,132.20/13,995.72 = 7,770.24/x
3. Step 3: Cross multiply
   10,132.20x = 13,995.72 × 7,770.24
4. Step 4: Simplify right side
   10,132.20x = 108,750,103.37
5. Step 5: Solve for x
   x = 108,750,103.37/10,132.20
6. Step 6: Final answer
   x = 10,733.12