Finding the Fourth Proportional to 10,245.58, 14,140.24 and 5,770.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,245.58 : 14,140.24 = 5,770.20 : x
2. Step 2: Convert to fraction form
   10,245.58/14,140.24 = 5,770.20/x
3. Step 3: Cross multiply
   10,245.58x = 14,140.24 × 5,770.20
4. Step 4: Simplify right side
   10,245.58x = 81,592,012.85
5. Step 5: Solve for x
   x = 81,592,012.85/10,245.58
6. Step 6: Final answer
   x = 7,963.63