Finding the Fourth Proportional to 13,109.85, 19,653.74 and 10,882.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.85 : 19,653.74 = 10,882.45 : x
2. Step 2: Convert to fraction form
   13,109.85/19,653.74 = 10,882.45/x
3. Step 3: Cross multiply
   13,109.85x = 19,653.74 × 10,882.45
4. Step 4: Simplify right side
   13,109.85x = 213,880,853.83
5. Step 5: Solve for x
   x = 213,880,853.83/13,109.85
6. Step 6: Final answer
   x = 16,314.52