Finding the Fourth Proportional to 13,828.10, 19,081.71 and 8,523

Step by Step Solution

1. Step 1: Write the proportion equation
   13,828.10 : 19,081.71 = 8,523 : x
2. Step 2: Convert to fraction form
   13,828.10/19,081.71 = 8,523/x
3. Step 3: Cross multiply
   13,828.10x = 19,081.71 × 8,523
4. Step 4: Simplify right side
   13,828.10x = 162,633,414.33
5. Step 5: Solve for x
   x = 162,633,414.33/13,828.10
6. Step 6: Final answer
   x = 11,761.09