Finding the Fourth Proportional to 16,812.72, 25,234.64 and 8,498.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,812.72 : 25,234.64 = 8,498.60 : x
2. Step 2: Convert to fraction form
   16,812.72/25,234.64 = 8,498.60/x
3. Step 3: Cross multiply
   16,812.72x = 25,234.64 × 8,498.60
4. Step 4: Simplify right side
   16,812.72x = 214,459,111.50
5. Step 5: Solve for x
   x = 214,459,111.50/16,812.72
6. Step 6: Final answer
   x = 12,755.77