Finding the Fourth Proportional to 11,697.03, 16,141.59 and 6,391.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,697.03 : 16,141.59 = 6,391.89 : x
2. Step 2: Convert to fraction form
   11,697.03/16,141.59 = 6,391.89/x
3. Step 3: Cross multiply
   11,697.03x = 16,141.59 × 6,391.89
4. Step 4: Simplify right side
   11,697.03x = 103,175,267.71
5. Step 5: Solve for x
   x = 103,175,267.71/11,697.03
6. Step 6: Final answer
   x = 8,820.64