Finding the Fourth Proportional to 16,419.38, 24,631.49 and 7,649.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,419.38 : 24,631.49 = 7,649.51 : x
2. Step 2: Convert to fraction form
   16,419.38/24,631.49 = 7,649.51/x
3. Step 3: Cross multiply
   16,419.38x = 24,631.49 × 7,649.51
4. Step 4: Simplify right side
   16,419.38x = 188,418,725.04
5. Step 5: Solve for x
   x = 188,418,725.04/16,419.38
6. Step 6: Final answer
   x = 11,475.39