Finding the Fourth Proportional to 13,824.45, 19,074.32 and 8,159.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,824.45 : 19,074.32 = 8,159.31 : x
2. Step 2: Convert to fraction form
   13,824.45/19,074.32 = 8,159.31/x
3. Step 3: Cross multiply
   13,824.45x = 19,074.32 × 8,159.31
4. Step 4: Simplify right side
   13,824.45x = 155,633,279.72
5. Step 5: Solve for x
   x = 155,633,279.72/13,824.45
6. Step 6: Final answer
   x = 11,257.83