Finding the Fourth Proportional to 16,429.76, 24,649.60 and 7,669.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,429.76 : 24,649.60 = 7,669.76 : x
2. Step 2: Convert to fraction form
   16,429.76/24,649.60 = 7,669.76/x
3. Step 3: Cross multiply
   16,429.76x = 24,649.60 × 7,669.76
4. Step 4: Simplify right side
   16,429.76x = 189,056,516.10
5. Step 5: Solve for x
   x = 189,056,516.10/16,429.76
6. Step 6: Final answer
   x = 11,506.96