Finding the Fourth Proportional to 23,109.69, 31,891.55 and 13,549.82

Step by Step Solution

1. Step 1: Write the proportion equation
   23,109.69 : 31,891.55 = 13,549.82 : x
2. Step 2: Convert to fraction form
   23,109.69/31,891.55 = 13,549.82/x
3. Step 3: Cross multiply
   23,109.69x = 31,891.55 × 13,549.82
4. Step 4: Simplify right side
   23,109.69x = 432,124,694.27
5. Step 5: Solve for x
   x = 432,124,694.27/23,109.69
6. Step 6: Final answer
   x = 18,698.85