Finding the Fourth Proportional to 11,581.59, 17,395.64 and 6,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,581.59 : 17,395.64 = 6,910.72 : x
2. Step 2: Convert to fraction form
   11,581.59/17,395.64 = 6,910.72/x
3. Step 3: Cross multiply
   11,581.59x = 17,395.64 × 6,910.72
4. Step 4: Simplify right side
   11,581.59x = 120,216,325.70
5. Step 5: Solve for x
   x = 120,216,325.70/11,581.59
6. Step 6: Final answer
   x = 10,379.95