Finding the Fourth Proportional to 11,589.17, 17,368.85 and 5,259.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,589.17 : 17,368.85 = 5,259.42 : x
2. Step 2: Convert to fraction form
   11,589.17/17,368.85 = 5,259.42/x
3. Step 3: Cross multiply
   11,589.17x = 17,368.85 × 5,259.42
4. Step 4: Simplify right side
   11,589.17x = 91,350,050.77
5. Step 5: Solve for x
   x = 91,350,050.77/11,589.17
6. Step 6: Final answer
   x = 7,882.37