Finding the Fourth Proportional to 9,377.56, 12,942.55 and 5,397.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,377.56 : 12,942.55 = 5,397.83 : x
2. Step 2: Convert to fraction form
   9,377.56/12,942.55 = 5,397.83/x
3. Step 3: Cross multiply
   9,377.56x = 12,942.55 × 5,397.83
4. Step 4: Simplify right side
   9,377.56x = 69,861,684.67
5. Step 5: Solve for x
   x = 69,861,684.67/9,377.56
6. Step 6: Final answer
   x = 7,449.88