Finding the Fourth Proportional to 9,689.76, 13,385.04 and 7,591.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,689.76 : 13,385.04 = 7,591.83 : x
2. Step 2: Convert to fraction form
   9,689.76/13,385.04 = 7,591.83/x
3. Step 3: Cross multiply
   9,689.76x = 13,385.04 × 7,591.83
4. Step 4: Simplify right side
   9,689.76x = 101,616,948.22
5. Step 5: Solve for x
   x = 101,616,948.22/9,689.76
6. Step 6: Final answer
   x = 10,487.04