Finding the Fourth Proportional to 10,830.54, 16,223.17 and 8,710.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,830.54 : 16,223.17 = 8,710.71 : x
2. Step 2: Convert to fraction form
   10,830.54/16,223.17 = 8,710.71/x
3. Step 3: Cross multiply
   10,830.54x = 16,223.17 × 8,710.71
4. Step 4: Simplify right side
   10,830.54x = 141,315,308.50
5. Step 5: Solve for x
   x = 141,315,308.50/10,830.54
6. Step 6: Final answer
   x = 13,047.86