Finding the Fourth Proportional to 11,383.76, 17,065.31 and 3,984.19

Step by Step Solution

1. Step 1: Write the proportion equation
   11,383.76 : 17,065.31 = 3,984.19 : x
2. Step 2: Convert to fraction form
   11,383.76/17,065.31 = 3,984.19/x
3. Step 3: Cross multiply
   11,383.76x = 17,065.31 × 3,984.19
4. Step 4: Simplify right side
   11,383.76x = 67,991,342.16
5. Step 5: Solve for x
   x = 67,991,342.16/11,383.76
6. Step 6: Final answer
   x = 5,972.66