Finding the Fourth Proportional to 9,388.65, 12,956.63 and 5,410.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.65 : 12,956.63 = 5,410.56 : x
2. Step 2: Convert to fraction form
   9,388.65/12,956.63 = 5,410.56/x
3. Step 3: Cross multiply
   9,388.65x = 12,956.63 × 5,410.56
4. Step 4: Simplify right side
   9,388.65x = 70,102,596.96
5. Step 5: Solve for x
   x = 70,102,596.96/9,388.65
6. Step 6: Final answer
   x = 7,466.74