Finding the Fourth Proportional to 10,182.33, 15,272.55 and 3,518.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,182.33 : 15,272.55 = 3,518.21 : x
2. Step 2: Convert to fraction form
   10,182.33/15,272.55 = 3,518.21/x
3. Step 3: Cross multiply
   10,182.33x = 15,272.55 × 3,518.21
4. Step 4: Simplify right side
   10,182.33x = 53,732,033.36
5. Step 5: Solve for x
   x = 53,732,033.36/10,182.33
6. Step 6: Final answer
   x = 5,276.99