Finding the Fourth Proportional to 13,013.46, 19,514.34 and 8,854.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,013.46 : 19,514.34 = 8,854.47 : x
2. Step 2: Convert to fraction form
   13,013.46/19,514.34 = 8,854.47/x
3. Step 3: Cross multiply
   13,013.46x = 19,514.34 × 8,854.47
4. Step 4: Simplify right side
   13,013.46x = 172,789,138.10
5. Step 5: Solve for x
   x = 172,789,138.10/13,013.46
6. Step 6: Final answer
   x = 13,277.72