Finding the Fourth Proportional to 16,402.50, 24,620.15 and 8,627.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.50 : 24,620.15 = 8,627.72 : x
2. Step 2: Convert to fraction form
   16,402.50/24,620.15 = 8,627.72/x
3. Step 3: Cross multiply
   16,402.50x = 24,620.15 × 8,627.72
4. Step 4: Simplify right side
   16,402.50x = 212,415,659.03
5. Step 5: Solve for x
   x = 212,415,659.03/16,402.50
6. Step 6: Final answer
   x = 12,950.20