Finding the Fourth Proportional to 10,886.25, 16,331.73 and 3,389.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,886.25 : 16,331.73 = 3,389.67 : x
2. Step 2: Convert to fraction form
   10,886.25/16,331.73 = 3,389.67/x
3. Step 3: Cross multiply
   10,886.25x = 16,331.73 × 3,389.67
4. Step 4: Simplify right side
   10,886.25x = 55,359,175.23
5. Step 5: Solve for x
   x = 55,359,175.23/10,886.25
6. Step 6: Final answer
   x = 5,085.24