Finding the Fourth Proportional to 9,357.68, 12,912.72 and 5,818.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357.68 : 12,912.72 = 5,818.16 : x
2. Step 2: Convert to fraction form
   9,357.68/12,912.72 = 5,818.16/x
3. Step 3: Cross multiply
   9,357.68x = 12,912.72 × 5,818.16
4. Step 4: Simplify right side
   9,357.68x = 75,128,271.00
5. Step 5: Solve for x
   x = 75,128,271.00/9,357.68
6. Step 6: Final answer
   x = 8,028.51