Finding the Fourth Proportional to 10,200.99, 14,078.81 and 5,725.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,200.99 : 14,078.81 = 5,725.84 : x
2. Step 2: Convert to fraction form
   10,200.99/14,078.81 = 5,725.84/x
3. Step 3: Cross multiply
   10,200.99x = 14,078.81 × 5,725.84
4. Step 4: Simplify right side
   10,200.99x = 80,613,018.97
5. Step 5: Solve for x
   x = 80,613,018.97/10,200.99
6. Step 6: Final answer
   x = 7,902.47