Finding the Fourth Proportional to 14,099.76, 19,405.89 and 12,087.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,099.76 : 19,405.89 = 12,087.72 : x
2. Step 2: Convert to fraction form
   14,099.76/19,405.89 = 12,087.72/x
3. Step 3: Cross multiply
   14,099.76x = 19,405.89 × 12,087.72
4. Step 4: Simplify right side
   14,099.76x = 234,572,964.67
5. Step 5: Solve for x
   x = 234,572,964.67/14,099.76
6. Step 6: Final answer
   x = 16,636.66