Finding the Fourth Proportional to 10,862.80, 16,303.98 and 5,672.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,862.80 : 16,303.98 = 5,672.32 : x
2. Step 2: Convert to fraction form
   10,862.80/16,303.98 = 5,672.32/x
3. Step 3: Cross multiply
   10,862.80x = 16,303.98 × 5,672.32
4. Step 4: Simplify right side
   10,862.80x = 92,481,391.83
5. Step 5: Solve for x
   x = 92,481,391.83/10,862.80
6. Step 6: Final answer
   x = 8,513.59