Finding the Fourth Proportional to 14,063.60, 21,084.89 and 8,515.59

Step by Step Solution

1. Step 1: Write the proportion equation
   14,063.60 : 21,084.89 = 8,515.59 : x
2. Step 2: Convert to fraction form
   14,063.60/21,084.89 = 8,515.59/x
3. Step 3: Cross multiply
   14,063.60x = 21,084.89 × 8,515.59
4. Step 4: Simplify right side
   14,063.60x = 179,550,235.86
5. Step 5: Solve for x
   x = 179,550,235.86/14,063.60
6. Step 6: Final answer
   x = 12,767.02