Finding the Fourth Proportional to 12,245.38, 16,900.02 and 8,274.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,245.38 : 16,900.02 = 8,274.61 : x
2. Step 2: Convert to fraction form
   12,245.38/16,900.02 = 8,274.61/x
3. Step 3: Cross multiply
   12,245.38x = 16,900.02 × 8,274.61
4. Step 4: Simplify right side
   12,245.38x = 139,840,977.28
5. Step 5: Solve for x
   x = 139,840,977.28/12,245.38
6. Step 6: Final answer
   x = 11,419.90