Finding the Fourth Proportional to 9,390.34, 12,956.12 and 5,611.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,390.34 : 12,956.12 = 5,611.82 : x
2. Step 2: Convert to fraction form
   9,390.34/12,956.12 = 5,611.82/x
3. Step 3: Cross multiply
   9,390.34x = 12,956.12 × 5,611.82
4. Step 4: Simplify right side
   9,390.34x = 72,707,413.34
5. Step 5: Solve for x
   x = 72,707,413.34/9,390.34
6. Step 6: Final answer
   x = 7,742.79