Finding the Fourth Proportional to 9,690.55, 13,373.55 and 5,443

Step by Step Solution

1. Step 1: Write the proportion equation
   9,690.55 : 13,373.55 = 5,443 : x
2. Step 2: Convert to fraction form
   9,690.55/13,373.55 = 5,443/x
3. Step 3: Cross multiply
   9,690.55x = 13,373.55 × 5,443
4. Step 4: Simplify right side
   9,690.55x = 72,792,232.65
5. Step 5: Solve for x
   x = 72,792,232.65/9,690.55
6. Step 6: Final answer
   x = 7,511.67