Finding the Fourth Proportional to 10,886.28, 16,328.52 and 3,488.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,886.28 : 16,328.52 = 3,488.76 : x
2. Step 2: Convert to fraction form
   10,886.28/16,328.52 = 3,488.76/x
3. Step 3: Cross multiply
   10,886.28x = 16,328.52 × 3,488.76
4. Step 4: Simplify right side
   10,886.28x = 56,966,287.44
5. Step 5: Solve for x
   x = 56,966,287.44/10,886.28
6. Step 6: Final answer
   x = 5,232.85