Finding the Fourth Proportional to 11,429.28, 17,134.20 and 10,884.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,429.28 : 17,134.20 = 10,884.96 : x
2. Step 2: Convert to fraction form
   11,429.28/17,134.20 = 10,884.96/x
3. Step 3: Cross multiply
   11,429.28x = 17,134.20 × 10,884.96
4. Step 4: Simplify right side
   11,429.28x = 186,505,081.63
5. Step 5: Solve for x
   x = 186,505,081.63/11,429.28
6. Step 6: Final answer
   x = 16,318.18