Finding the Fourth Proportional to 10,200.20, 14,076.26 and 5,724.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,200.20 : 14,076.26 = 5,724.37 : x
2. Step 2: Convert to fraction form
   10,200.20/14,076.26 = 5,724.37/x
3. Step 3: Cross multiply
   10,200.20x = 14,076.26 × 5,724.37
4. Step 4: Simplify right side
   10,200.20x = 80,577,699.58
5. Step 5: Solve for x
   x = 80,577,699.58/10,200.20
6. Step 6: Final answer
   x = 7,899.62