Finding the Fourth Proportional to 9,355.92, 12,912.63 and 5,820.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,355.92 : 12,912.63 = 5,820.30 : x
2. Step 2: Convert to fraction form
   9,355.92/12,912.63 = 5,820.30/x
3. Step 3: Cross multiply
   9,355.92x = 12,912.63 × 5,820.30
4. Step 4: Simplify right side
   9,355.92x = 75,155,380.39
5. Step 5: Solve for x
   x = 75,155,380.39/9,355.92
6. Step 6: Final answer
   x = 8,032.92