Finding the Fourth Proportional to 10,857.47, 16,280.69 and 5,302.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857.47 : 16,280.69 = 5,302.49 : x
2. Step 2: Convert to fraction form
   10,857.47/16,280.69 = 5,302.49/x
3. Step 3: Cross multiply
   10,857.47x = 16,280.69 × 5,302.49
4. Step 4: Simplify right side
   10,857.47x = 86,328,088.00
5. Step 5: Solve for x
   x = 86,328,088.00/10,857.47
6. Step 6: Final answer
   x = 7,951.04