Finding the Fourth Proportional to 12,199.16, 16,826.18 and 10,328.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,199.16 : 16,826.18 = 10,328.06 : x
2. Step 2: Convert to fraction form
   12,199.16/16,826.18 = 10,328.06/x
3. Step 3: Cross multiply
   12,199.16x = 16,826.18 × 10,328.06
4. Step 4: Simplify right side
   12,199.16x = 173,781,796.61
5. Step 5: Solve for x
   x = 173,781,796.61/12,199.16
6. Step 6: Final answer
   x = 14,245.39