Finding the Fourth Proportional to 10,207.28, 14,086.86 and 5,731.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,207.28 : 14,086.86 = 5,731.33 : x
2. Step 2: Convert to fraction form
   10,207.28/14,086.86 = 5,731.33/x
3. Step 3: Cross multiply
   10,207.28x = 14,086.86 × 5,731.33
4. Step 4: Simplify right side
   10,207.28x = 80,736,443.32
5. Step 5: Solve for x
   x = 80,736,443.32/10,207.28
6. Step 6: Final answer
   x = 7,909.69