Finding the Fourth Proportional to 10,875.99, 16,315.17 and 3,478.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,875.99 : 16,315.17 = 3,478.71 : x
2. Step 2: Convert to fraction form
   10,875.99/16,315.17 = 3,478.71/x
3. Step 3: Cross multiply
   10,875.99x = 16,315.17 × 3,478.71
4. Step 4: Simplify right side
   10,875.99x = 56,755,745.03
5. Step 5: Solve for x
   x = 56,755,745.03/10,875.99
6. Step 6: Final answer
   x = 5,218.44