Finding the Fourth Proportional to 10,891.49, 16,338.75 and 3,498.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.49 : 16,338.75 = 3,498.22 : x
2. Step 2: Convert to fraction form
   10,891.49/16,338.75 = 3,498.22/x
3. Step 3: Cross multiply
   10,891.49x = 16,338.75 × 3,498.22
4. Step 4: Simplify right side
   10,891.49x = 57,156,460.33
5. Step 5: Solve for x
   x = 57,156,460.33/10,891.49
6. Step 6: Final answer
   x = 5,247.81