Finding the Fourth Proportional to 11,619.17, 17,429.29 and 3,828.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,619.17 : 17,429.29 = 3,828.05 : x
2. Step 2: Convert to fraction form
   11,619.17/17,429.29 = 3,828.05/x
3. Step 3: Cross multiply
   11,619.17x = 17,429.29 × 3,828.05
4. Step 4: Simplify right side
   11,619.17x = 66,720,087.30
5. Step 5: Solve for x
   x = 66,720,087.30/11,619.17
6. Step 6: Final answer
   x = 5,742.24