Finding the Fourth Proportional to 16,911.29, 23,338.42 and 10,199.09

Step by Step Solution

1. Step 1: Write the proportion equation
   16,911.29 : 23,338.42 = 10,199.09 : x
2. Step 2: Convert to fraction form
   16,911.29/23,338.42 = 10,199.09/x
3. Step 3: Cross multiply
   16,911.29x = 23,338.42 × 10,199.09
4. Step 4: Simplify right side
   16,911.29x = 238,030,678.89
5. Step 5: Solve for x
   x = 238,030,678.89/16,911.29
6. Step 6: Final answer
   x = 14,075.25