Finding the Fourth Proportional to 10,204.28, 14,081.54 and 5,728.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,204.28 : 14,081.54 = 5,728.22 : x
2. Step 2: Convert to fraction form
   10,204.28/14,081.54 = 5,728.22/x
3. Step 3: Cross multiply
   10,204.28x = 14,081.54 × 5,728.22
4. Step 4: Simplify right side
   10,204.28x = 80,662,060.01
5. Step 5: Solve for x
   x = 80,662,060.01/10,204.28
6. Step 6: Final answer
   x = 7,904.73