Finding the Fourth Proportional to 11,591.79, 17,390.72 and 5,016.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,591.79 : 17,390.72 = 5,016.43 : x
2. Step 2: Convert to fraction form
   11,591.79/17,390.72 = 5,016.43/x
3. Step 3: Cross multiply
   11,591.79x = 17,390.72 × 5,016.43
4. Step 4: Simplify right side
   11,591.79x = 87,239,329.53
5. Step 5: Solve for x
   x = 87,239,329.53/11,591.79
6. Step 6: Final answer
   x = 7,525.96