Finding the Fourth Proportional to 16,505.31, 24,719.83 and 9,916.97

Step by Step Solution

1. Step 1: Write the proportion equation
   16,505.31 : 24,719.83 = 9,916.97 : x
2. Step 2: Convert to fraction form
   16,505.31/24,719.83 = 9,916.97/x
3. Step 3: Cross multiply
   16,505.31x = 24,719.83 × 9,916.97
4. Step 4: Simplify right side
   16,505.31x = 245,145,849.52
5. Step 5: Solve for x
   x = 245,145,849.52/16,505.31
6. Step 6: Final answer
   x = 14,852.54